Well, that was embarrassing

At the end of an individual session I found that I really needed a pee. The trainee was a middle aged man and seemed very laid back. I broke one of the rules and asked if I could pop in for a pee. I was so desperate that I didn't look around the loo till I was half way done. I looked up and saw that the entire place was decorated with a massive collage' of extreme hardcore gay porn. Now I always pee before a session.

I never tire of hearing this story.