THE SUPREME COURT OF APPEAL OF SOUTH AFRICA
JUDGMENT

Case No:   176/2010
In the matter between:

SLIP KNOT INVESTMENTS 777 (PTY) LTD
Appellant

and

WILLEM MALAN DU TOIT

Respondent

(Fifth Respondent in the court a quo)

Neutral citation:
Slip
Knot
v
Du
Toit
(176/2010)
[2011] ZASCA
(28 March 2011)
Coram:
NAVSA, NUGENT, HEHER, CACHALIA and MALAN JJA
Heard:
7 March  2011
Delivered:
28 March 2011
Summary:
Suretyship – fraud or misrepresentation by third party –
whether surety bound

_____________________________________________________________________
ORDER
On appeal from: Free State High Court (Bloemfontein) (A Kruger J sitting as court of
first instance):
(1)
The appeal is upheld with costs.
(2)
The judgment of the court a quo is set aside and replaced with the following:
‘Judgment is granted in favour of the applicant against the fifth respondent
jointly and severally with the first to third respondents in their capacities as
trustees of the Smitskop Trust (IT Number 207/96) and the fourth and sixth
respondents, for –
(a) payment of the sum of R 7 950 000,00;
(b) interest on the aforesaid sum at the rate of 1,5 per cent per week,
calculated daily, from 8 May 2008 to date of payment;
(c) costs of suit on the attorney and own client scale.’
_____________________________________________________________________
JUDGMENT
MALAN JA (NAVSA, NUGENT, HEHER, CACHALIA JJA  concurring)

[1] This appeal concerns the defence of iustus error to a claim seeking to enforce an
agreement of suretyship. The respondent (the fifth respondent in the court below),
although admitting that he signed the deed of suretyship, denied that he was liable and
averred that he signed by mistake and without the intention to incur contractual liability.
In determining whether a mistake is iustus the courts have posed the following question:
‘Has the first party – the one who is trying to resile – been to blame in the sense that by his conduct he has led the
other party, as a reasonable man, to believe that he was binding himself? . . . If his mistake is due to a

misrepresentation, whether innocent or fraudulent, by the other party, then, of course, it is the second party who is to
blame and the first party is not bound.’1
[2] This case is not concerned with a misrepresentation, whether innocent or not, by
the appellant inducing the respondent to sign a suretyship. The appellant, Slip Knot
Investments 777 (Pty) Ltd, did not negotiate with the respondent, nor did it have any
contact with him prior to him signing the suretyship. On the contrary, the respondent
relied, if not on fraud, on the omission of a third party to inform him of the nature of the
document he was called upon to sign.2
[3] At the time of the hearing of the application the respondent was a sixty-year old
farmer in the district of Luckhoff. He was also a trustee of the Smitskop Trust (the ‘trust’)
along with his brother and the latter’s son. The appellant, Slip Knot, advanced a sum of
R6 million to the trust. The respondent, his brother and nephew signed a deed of
suretyship in favour of Slip Knot. Judgment was obtained against the trust and the
sureties after the trust had failed to adhere to the terms of a settlement agreement. The
sequestration of the trust and the estate of the respondent’s brother followed. The
respondent was unaware of the proceedings against the trust and the sureties. He
brought an application for rescission of the judgment against him, which was granted.
The main application subsequently came before Kruger J in the Free State High Court.
He dismissed Slip Knot’s application for judgment against the respondent but gave
leave to appeal to this court.
[4] The trust was created in 1996 by the respondent’s brother who was a beneficiary
of the income of the trust. Although decisions of the trustees had to be taken by a
majority vote the brother had to be part of the majority. He had the power to determine
by will the date of vesting of the trust funds and to determine the way in which its assets
were to be divided at the termination of the trust. The brother also administered the trust
in his own interests and those of his heirs. The respondent had no interest in the trust
assets or its income. He was, however, one of the three trustees albeit, as he said, only
in name. The business of the trust was managed by the respondent’s brother and

1 George v Fairmead (Pty) Ltd 1958 (2) SA 465 (A) at 471A-D.
2 The position where the misapprehension has been caused by a third party was left open in Brink v
Humphries & Jewell (Pty) Ltd [2005] 2 All SA 343 (SCA) para 2 n 6.

nephew. The trust had farming interests in Fauresmith but those interests were
unrelated to the farming activities of the respondent. The respondent controlled trusts of
his own, of which his brother was a trustee, but they were managed by the respondent
alone. The respondent knew before he signed the suretyship that his brother was
involved in major business transactions elsewhere in Africa. He regarded them as risky.
[5] The suretyship was signed on 6 November 2007. It appears that on that day the
respondent’s nephew had telephoned the respondent’s friend, Altro Potgieter, and told
her that he had certain documents that required the respondent’s signature. They
concerned the business transactions that his father was conducting in Africa and had to
be signed urgently and returned by fax on the same day. The respondent and his own
son were at that time busy on his farm outside Luckhoff. Potgieter told him of the
conversation and informed him of the need to sign the documents before a
commissioner of oaths. He was, however, busy and asked her to wait. After two further
calls to her from his nephew, Potgieter again spoke to the respondent and emphasised
the urgency of the matter. Potgieter gave him a bundle of documents comprising some
75 pages that had already been signed by his brother and nephew. The respondent
remarked that it would have taken him a day to read through them. He was prepared to
sign the documents without reading them because he thought that he was not
personally affected and because the two other trustees had already signed. The
respondent assumed that his brother and nephew had agreed to the terms on which
Slip Knot would advance monies to the trust and that his signature was required as a
trustee only.
[6] The respondent and his son went to the manager of the First National Bank in
Luckhoff, a commissioner of oaths, to sign the documents. Although the manager had
occupied that position for a week, he used to be manager at the Fauresmith branch of
the same bank and knew of the transaction. This reassured the respondent that the
documents concerned his brother’s trust. He signed on each of the pages at the places
where his brother and nephew had signed. He also initialled every page where their
initials appeared. Potgieter and the respondent’s son witnessed his signature and also
initialled where his initials appeared. Neither the respondent nor the bank manager or

any of the two witnesses read the documents or paid any attention to their contents.
They were thereafter faxed to the respondent’s brother. The respondent could not
afterwards, when requested by his attorney, find his copies and assumed that they were
destroyed after faxing; he had, he stated, no reason to keep them because they did not
affect him financially. He had never negotiated with the appellant and had never
discussed the transactions with his brother or nephew, and he would not have signed as
surety in respect of such a large amount borrowed at a very high rate of interest and
concerning a business venture he regarded as risky.
[7] The documents comprised the memorandum of agreement providing for the R6
million loan to the trust. Annexure A to it is a resolution by the trustees of the trust
authorising it to enter into the loan agreement. Annexure B is an extract of a resolution
of the directors of Slip Knot. Also included was the deed of amendment of the Smitskop
Trust signed by all the trustees; the amended letter of authority of the Master; the
suretyship agreement; Annexure A thereto, an extract of a  resolution by Slip Knot
authorising a director to enter into the deed of suretyship; a letter of undertaking
authorising a firm of attorneys to pay Slip Knot the sale proceeds of certain properties
belonging to the trust; a letter by the attorneys to Slip Knot undertaking to pay these
proceeds; a power of attorney to pay a bond in favour of Slip Knot over certain trust
properties; a covering mortgage bond; and a cession of loan accounts in the trust by the
trustees to Slip Knot. All these documents were signed and initialled by the respondent
and the other trustees. The individual documents were headed differently but the
headings of the memorandum of agreement, its Annexures A and B, and the suretyship
are all in bold capital letters similar to the recitation of the parties to the agreements.
They are in larger print than the remainder of the document. Although he did not read
the documents the respondent stated that he never expected a suretyship to be
amongst them. No one drew his attention to the suretyship.
[8] It was submitted on behalf of Slip Knot that, although the respondent’s mistake
may have been induced by fraud, ie the omission of his brother or his nephew to draw
the suretyship to his attention, the binding force of the suretyship was not affected

thereby. It is correct that, as was said in Karabus’ case,3 where ‘the fraud which induces
a contract does not proceed from one of the parties, but from an independent third
person, it will have no effect on the contract.’ But the mistake relied upon in Karabus
was an error in motive: the intention of the defendant in that case was directed at the
conclusion of the contract on the cheque and his mistake concerned only the reason for
entering into it.4
[9] The respondent’s defence is that he lacked the intention to be bound and
therefore that no agreement of suretyship was concluded. Contractual liability, however,
arises not only in cases where there is consensus or a real meeting of the minds but
also by virtue of the doctrine of quasi mutual assent. Even where there is no consensus
contractual liability may nevertheless ensue.5 The respondent’s mistake is a unilateral
one. Referring to the mistake of the kind the respondent laboured under it was said in
National and Overseas Distributors Corporation (Pty) Ltd v Potato Board:6
‘Our law allows a party to set up his own mistake in certain circumstances in order to escape liability
under a contract into which he has entered. But where the other party has not made any
misrepresentation and has not appreciated at the time of acceptance that his offer was being accepted
under a misapprehension, the scope for a defence of unilateral mistake is very narrow, if it exists at all. At
least the mistake (error) would have to be reasonable (justus) and it would have to be pleaded.’
The ‘decisive question’ to be asked in cases such as this has been formulated as
follows:7
‘[D]id the party whose actual intention did not conform to the common intention expressed, lead the other
party, as a reasonable man, to believe that his declared intention represented his actual intention? … To
answer this question, a three-fold enquiry is usually necessary, namely, firstly, was there a

3 Karabus Motors (1959) Ltd v Van Eck 1962 (1) SA 451 (C) at 453C-D.
4 Saambou-Nasionale Bouvereniging v Friedman 1979 (3) SA 978 (A) at 999H-1000C.
5 See eg Sonap Petroleum (SA) Pty Ltd (formerly known as Sonarep (SA) (Pty) Ltd) v Pappadogianis
1992 (3) SA 234 (A) at 238I-240B; Be Bop a Lula Manufacturing & Printing CC v Klingtex Marketing (Pty)
Ltd [2008] 1 All SA 529 (SCA) paras 10, 11 and 14.
6 1958 (2) SA 473 (A) at 479G-H. For a discussion of Musgrove & Watson (Rhod) (Pvt) Ltd v Rotta 1978
(2) SA 918 (R) (on appeal reported as Musgrove & Watson (Rhodesia) Ltd v Rotta (1978 (4) SA 656
(RA)) and Standard Credit Corporation Ltd v Naicker 1987 (2) SA 49 (N) see Carole Lewis ‘Caveat
subscriptor and the doctrine of justus error’ (1987) 104 SALJ 371.
7 Sonap Petroleum (SA) (Pty) Ltd (formerly known as Sonarep (SA) (Pty) Ltd) v Pappadogianis 1992 (3)
SA 234 (A) at 239I-240B. See Davids & andere v ABSA Bank Bpk 2005 (3) SA 361 (C) paras 13-15 and
cf the discussion by Dale Hutchison ‘“Traps for the Unwary”: when careless errors are excusable’ in
Graham Glover (ed) Essays in Honour of AJ Kerr (2006) p 39.

misrepresentation as to one party’s intention; secondly, who made that misrepresentation; and thirdly,
was the other party misled thereby? … The last question postulates two possibilities: Was he actually
misled and would a reasonable man have been misled?’
[10] In the court below Kruger J found that the respondent’s mistake was reasonable.
In coming to this conclusion he emphasised that the respondent was a farmer who had
nothing to do with the business of the trust and the loan to it.  He was not a
businessman.  He knew that the documents related to his brother’s venture into Africa
and, although he considered it risky, thought that they did not concern him. It was
because he was put under considerable pressure to sign them forthwith that led him to
believe that they did not affect him. Slip Knot did not negotiate with the respondent at all
and the latter became aware of their existence only afterwards. The bank manager, in
addition, informed the respondent that he was aware of the transaction and that had set
his mind at rest. The suretyship was also not prominent among them. In a sense,
Kruger J opined, his brother and nephew, in forwarding the documents to him, had
acted as the appellant’s agents who should have warned him of the suretyship in the
bundle. The heading of the suretyship was in the same type as the other words on the
first page. The respondent, the court below found, had no reason to expect a
suretyship, in terms of which he would personally undertake liability as a surety to be
among them.
[11] In argument before us counsel for the respondent expressly disavowed that the
respondent was misled by Slip Knot – whether by reason of the form in which the
documents were couched or in any other way. To the extent that the respondent was
misled he placed the blame squarely and solely at the doors of his brother and nephew.
Nor is there any suggestion that the fraud or misrepresentation of the respondent’s
relatives could or should be attributed to Slip Knot. There is every reason to infer that
Slip Knot, as a reasonable person, believed that the respondent’s declared intention to
be bound as surety as evidenced by his signature to the suretyship also represented his
real intention. The respondent entered into the suretyship relying, not on any
representation by Slip Knot, but on representations made to him by his nephew and
conveyed to him by Altro Potgieter.

[12] A contracting party is generally not bound to inform the other party of the terms of
the proposed agreement.8 He must do so, however, where there are terms that could
not reasonably have been expected in the contract.9 The court below came to the
conclusion that the suretyship was ‘hidden’ in the bundle and held that the respondent
was in the circumstances entitled to assume that he was not personally implicated. I can
find nothing objectionable in the set of documents sent to the respondent. Even a
cursory glance at them would have alerted the respondent that he was signing a deed
of suretyship. As I have said, counsel for the respondent conceded that there was
nothing misleading in the bundle and that a suretyship among the documents was not
unexpected. The court below emphasised the fact that the respondent was a farmer and
not a businessman and that he had nothing to do with the trust and the loan advanced
to the trust. This is incorrect. The respondent was a trustee of the trust. He may have
been a farmer but this is of no consequence. The respondent had his own trusts and
managed them. He must have known what a trust was and what the duties and
responsibilities of a trustee were.10 Slip Knot was entitled to rely on the respondent’s
signature as a surety just as it was entitled to rely on his signature as a trustee.11 The
respondent relied entirely on what was conveyed to him by his nephew through Altro
Potgieter. Slip Knot made no misrepresentation to him and there is no suggestion on
the respondent’s papers that Slip Knot knew or ought, as a reasonable person, to have
known of his mistake. The rate at which interest was charged was not placed in issue in
the court below or in this appeal.
[13] The following order is made:
(1)
The appeal is upheld with costs.
(2)
The judgment of the court a quo is set aside and replaced with the following:

8 Constantia Insurance Co Ltd v Compusource (Pty) Ltd 2005 (4) SA 345 (SCA) para 19.
9 Afrox Healthcare Bpk v Strydom 2002 (6) SA 21 (SCA) para 36 and cf Fourie v Hansen & another
[2001] 1 All SA 510 (W) at 516.
10 See Edwin Cameron with Marius de Waal, Basil Wunsh, Peter Solomon and Ellison Kahn Honoré’s
South African Law of Trusts 5 ed (2002) p 262ff.
11 See Glen Comeragh (Pty) Ltd v Colibri (Pty) Ltd & another 1979 (3) SA 210 (T) at 214D-F.

‘Judgment is granted in favour of the applicant against the fifth respondent jointly
and severally with the first to third respondents in their capacities as trustees of
the Smitskop Trust (IT Number 207/96) and the fourth and sixth respondents, for
–
(a)
payment of the sum of R 7 950 000;
(b)
interest on the aforesaid sum at the rate of 1,5 per cent week, calculated
daily, from 8 May 2008 to date of payment;
(c)
costs of suit on the attorney and own client scale.’

_________________
F R MALAN
JUDGE OF APPEAL

APPEARANCES:
For Appellant:

A C Botha

Instructed by:

Sim & Botsi Attorneys Inc

Johannesburg

Lovius Block

Bloemfontein

For Respondent:

J P de Bruin SC

Instructed by:

Symington & De Kok

Bloemfontein
THE SUPREME COURT OF APPEAL
REPUBLIC OF SOUTH AFRICA

MEDIA SUMMARY – JUDGMENT DELIVERED IN THE SUPREME COURT OF APPEAL

From:
The Registrar, Supreme Court of Appeal

Date:
28 March 2011

Status:
Immediate

Please note that the media summary is intended for the benefit of
the media and does not form part of the judgment of the Supreme
Court of Appeal.

SLIP KNOT v DU TOIT

The Supreme Court of Appeal today upheld an appeal by a money
lender who had made a loan to a trust which was secured by the
three separate deeds of suretyship by the three trustees. The
defence raised by the respondent, one of the trustees, was that he
had signed the suretyship by mistake and that at the time he
signed it he was unaware of its nature. The mistake he relied upon
was that he was misled by the other trustees who had failed to
inform him that one of the documents he was asked to sign was a
personal suretyship. The Bloemfontein high court upheld the

defence of justifiable mistake but the Supreme Court of Appeal
found that, because the money lender had not made any
misrepresentation to the respondent and was unaware of his
mistake, it was entitled to rely on the appearance of contractual
liability created by his signature.