Whi is the father?

A young boy comes running down the street looking for a cop.

He finds one and then begs, "Please, officer, come back to the bar with me, my father's in a fight."

Well, they get back to the bar and there's three guys fighting like you wouldn't believe.

After a while the cop turns to the kid and says, "Okay, which one's your father."

The kid looks up at the cop and says, "I don't know, officer, that's what they're fighting about."