five balls

one day a man walks into a bar and says he wants to make a bet.
the bartender knowing the man always loses a bet asks him what
he is betting on.the man tells him he is gonna bet that he has
three nuts. the bartender says well i am going to take your side
on this one. so the man stands up and says me and the bartender
bet 1000 dollars a piece that between the two of us we have five
balls. just then the bartender pulls out this .45 magnum and
says mother fucker you better have four.