Parents in the East End of Glasgow were shocked to be asked about their sex lives, so that their pre-school children would get “gay-friendly” lessons.

Mums and Dads were offered free theatre tickets in exchange for answering a survey about their sexual orientation.

The study was carried out by a local arts group which is part-run by the city council.

The aim of the Platform charity’s questionnaire, was to help “monitor the degree to which our programmes are gay-friendly”.