A man walks into a bar and goes up to the second story

A man walks into a bar and goes up to the second story

He orders a drink called the magic potion, drinks it, and jumps out the window and flies away. The guy who was sitting next to him asks the bartender what drink he had. The bar tender tells him it was the magic potion. The guy orders one, drinks it, and jumps out the window and lands on the ground. The first guy comes back in and the bartender says to him: "Superman, you can be a real jerk sometimes."