You can get through very serious and sometimes horrible and sometimes embarrassing and very awkward situations with humor. It gives us a way out.
I was a window dresser for Burton's once. What really put me off was the area manager coming round and saying, Charles, I think you're a natch at this.
I love to start characters in a place where you think you know them. We can make all kinds of assumptions about them and think they have no redeeming qualities, but like everyone, they're complex.