There's no handbook for parenting. So you walk a very fine line as a parent because you are civilizing these raw things. They will tip the coffee over and finger-paint on the table. At some point, you have to say, 'We're gonna have to clean that up because you don't paint with coffee on a table.'
The fine line between roaring with laughter and crying because it's a disaster is a very, very fine line. You see a chap slip on a banana skin in the street and you roar with laughter when he falls slap on his backside. If in doing so you suddenly see he's broken a leg, you very quickly stop laughing and it's not a joke anymore.