this is kinda lame but i laugh so much every time i hear it !
Ok so theres two guys at a bar, and one guy flys out the window does 3 flips and comes and sits back down.
the other guy says "wow! how did you do that!?"
and the other guy says" ill sell you this pill for $500.00 and youll be able to do it"
then the other guy says"Ok!" and buys the pill, and swallows it
And he jumps out the window, to his death.
and the bar tender gos to the guy and says"Agian, Superman Really.? Really.?
Hahaahaha.
i think its the funniest thing ever,

I hope i helped you.
and good luck on the comedy night!