That reminds me of some HT entertainment:
Teacher asks class if Man Utd is their favourite team. Everyone says yes except for Jimmy.
"What's your favourite team, Jimmy?"
He says, "Chelsea."
Teacher asks "Well why is that?"
"Well, my dad & mom are Chelsea fans, I guess that makes me a Chelsea fan."
Angry teacher says, "If your dad was a moron & your mom was an idiot, what would that make you?"
He replies "Well, that would make me a Man Utd fan."