You are at a dinner party and you make a sweeping generalization that serves as a premise to the punchline of your joke. From a corner of the table, you hear a “Well, actually…” that negates your premise and kills the laughs. We all know a person like that. In fact, who am I kidding; I am usually that person.
It is one thing to spoil jokes at a social gathering; it is a whole other thing to do it for a living. While this type of profile may not make you a hot ticket for dinner invitations, it may well make you increasingly employable in showbiz.