http://news.bbc.co.uk/1/hi/wales/8357454.stmIt's causing him to be a bit more than an exhibitionist by the sound of it

, but I've read about quite a few cases where physical brain problems seem to have played a major part in sex crimes, including a guy who was looking at execution in the States - he'd never had so much as a parking ticket, but over a short space of time his behaviour completely changed (including abusing kids), baffling psychiatrists. Turned out he had a tumor pressing on a particular section of his brain. No idea how the case went though
