Sorry for the double post, but I remember more.
My old Biology teacher told us 'Twins are a genetic accident.' There was a set of twins and one of another set of twins in my class. For twenty minutes they kicked up a fuss.
Pretty much anything by Amateur Transplants.
I was outside my old school with my friend (same female from earlier post). A guy was coming out of the school who she said was autistic. Without thinking, I said 'HEYOO AUTISTICOO!'. She laughed uncontrollably, and the guy came over to us (he didn't hear me). I acted natural, talked to him a bit, then when he left I nearly died laughing (I am a harsh, harsh bastard).
I make too many Holocaust jokes. I have been to Auschwitz (I nearly cried). It is very strange how I am so insensitive. I don't mean any of the jokes either!
'What do you tell a woman with two black eyes? Nothing, she's already been told.'
I have made references to children being molested by Catholic priests to a Catholic. They didn't care though.
Any Princess Diana jokes Frankie Boyle makes.
In my Law class (everything great takes place in my Law class), the student lecturer said about how Osama Bin Laden was the Hide and Seek champion of the world. This guy in the back of the class said really quickly 'Madeleine McCann is better'. The lecturer just stood with his mouth wide open, and said 'I am not giving my opinion on the matter, but I wouldn't say something like that again.'