“Knock, knock.”
“Who’s there?”
“A communist-fascist dictator.”
“That’s impossible — communism and fascism are at opposite ends of the philosophical spectrum.” “You’re supposed to say ‘a communist-fascist dictator who.’”
“Fine. A communist-fascist dictator who?”
“Oh, never mind. You’ve ruined the joke. I’ll go next door to the tea party patriot’s house.”