A woman walks into a top floor pub and sees a really good-looking bloke sitting at the bar. She goes over and asks him what he is drinking. He says, "Magic Bitter."
She thinks he's a bit of an idiot, so she walks around the pub.

After realising that there is no one else worth talking to, she goes back to the man sitting at the bar.
She says, "That isn't really Magic Bitter, is it?"
He says, "Yes. I'll show you." So, he takes a gulp of the bitter, jumps out the window, flies around the building 3 times, and comes back into the window.
She can't believe it.
She says to him, "I bet you can't do that again." So, he takes another drink of the bitter, jumps out the window, flies around the building 3 times, and comes back in the window.

She is amazed.

She says that she wants a Magic Bitter. So the bloke says to the bartender, "Give her a pint of what I'm having."

She gets her pint, takes a gulp, jumps out the window, plummets 30 stories, breaks every bone in her body and dies.

The bartender looks up at the bloke and says, "Superman, you're such a tosser when you're pissed."