The other third didn't lie, or perhaps forgot, or you're lying to me about your lying, which is very, very devious.  This fits with a lot of the research, which suggests that lying is very pervasive.
Cealaltă treime nu a minţit, poate a uitat, sau poate mă minţiţi cu privire la minciunile voastre, ceea ce e foarte foarte necinstit.  Asta confirmă cercetările care sugerează că minciuna e foarte răspândită.