For some reason two guys are getting drunk on a rooftop bar of a skyscraper.....

..and the bartender steps out for a minute.

First drunk guy: I'll let you in on a lil secret- there's an up draft of air current so strong on the north side of this skyscraper that you can float in mid air right off the edge of the roof.

Second drunk guy: I might be shit faced but I'm not stupid.

First drunk guy: Ok - watch this.

First drunk guy proceeds to step off the edge of the roof and walk a few feet away from the roof's edge and clearly floats in the air.

Second drunk guy : WTF?!?!??! How'd you do that???

First drunk guy : I told you -the up draft is THAT strong.

Second drunk guy : THAT CAN'T BE!!

So the first drunk guy proceeds to walk a little to the left then the right then back to his original spot then back to his seat.

Second drunk guy : DAMM!!!! ------ Let me try it!

Second drunk guy proceeds to step off the edge of the roof at the same point as the first drunk guy and falls straight down on the pavement below and dies.

Just then bartender returns and takes a look down at the commotion on the street below and turns to the first drunk guy.....

Bartender : You're a real fucking prick when you're drunk superman.