A man walks into a rooftop bar and takes a seat.

“What are you drinking?” he asks the guy next to him.

“Magic beer,” the guy replies.

“Oh yeah? What’s so magical about it?”

“Watch.” The guy finishes his beer, walks over to the edge of the roof, and jumps. He falls almost to the ground and then swoops back up to the ledge, stepping gently onto the roof.

“Amazing!” the first man says. “Lemme try some of that!”

He grabs his beer, drinks it down, leaps off the roof and plummets fifty stories to the sidewalk, where he lands with a splat.

The bartender shakes his head.

“You know, you’re real nasty when you’re drunk, Superman.”