Joe sets up his friend Mike on a blind date with a young lady-friend of his. But Mike is a little worried about going out with someone he's never seen before. "What do I do if she's really unattractive?" says Mike. "I'll be stuck with her all night."  

"Don't worry," Joe says, "just go up to her door and meet her first. If you like what you see, then everything goes as planned. If you don't just shout 'Aaaaaauuuggghhh!' and fake an asthma attack."  

So that night, Mike knocks at the girl's door and when she comes out he is awe-struck at how attractive she is. He's about to speak when the girl suddenly shouts:  

"Aaaaaauuuggghhh!"