It seems to me that humour is everybody's way of keeping sane and standing off from the situations so that they can see it intellectually, as well as emotionally, and I don't know whether you've noticed, but if somebody tells a joke, it's nearly always a mini fantasy.
“I look at old interviews and things and they say, 'What do you want to do when you grow up?' I say, 'I want to be a producer.' And I'm really fortunate that I was able to do it.”