John walks into a bar

John walks into a bar and sits at the counter.
The bartender asks him

"what would you like?"
Before John can reply a well built man sitting next to him says

"Get the 'special' shot, it makes you fly!"
"Yeah right, a shot that makes you fly." John replies. "If it makes you fly why don't you prove it"

So the man asks the bartender for one 'special' shot. The bartender slides it down the counter and the man slams it.

"Watch this"

The man goes up the stairs to the second floor and jumps out the window. Right before he hits the ground he hovers in place and lands softly on his feet.

"Told you!"
"That's crazy! Let me get on of those shots!"

John slams the shot and hustles up to the second floor, jumps out the window and SMASHES into the ground.

The bartender looks at the man and says

"You're a dick when you're drunk, Superman"