The comedian on non-verbal heckles, one-legged dancing before gigs and his new show about benches Why did you get into comedy?I was told the only copy of a map to the lost, golden city of Paititi was hidden in the green-room toilet (ie, sink) of a UK comedy club. Doing standup seemed the best way to gain access. I'm still looking. Where do you find material?Woolworths used to have a decent section for it but since th…