A sense of humor is the ability to understand a joke - and that the joke is oneself.
“We then took a shortened version of what we'd been doing in the pubs, with the best gags and things like that, out to cabaret clubs and things in the north of England for six weeks. And we became a big success.”
“You go out with a girl you used to date, she looks so damn good, and then at a certain point you say, Boy, now I remember. I know why I left!”