A man walks into a space bar and orders a beer. As he's sipping his drink, he hears a voice say: "Psychic, you're drunk!" He looks around, but he can't see anyone. Then he hears the voice again: "You're really showing your true colors!" He looks down and sees his shirt is on inside out. He turns around, but he can't see anyone. He looks up and down, but he can't see anyone. Then he hears the voice again: "Why did the alien bring a ladder to the party?" He looks around, but he still can't see anyone. Then he hears the voice again: "Because he heard it was a step in the right direction!"