 Although mildly supportive of devolution, Thomas was opposed to what he regarded as the excesses of Welsh nationalism.On 30 January 1984 Thomas was convicted at Gowerton Magistrates' Court, Swansea, of importuning for immoral purposes at a men's public lavatory (he was fined £75).The case was reported and attracted negative publicity for Thomas, who announced to Carmarthen Constituency Labour Party on 2 March that he would resign his seat.