On the flip side, there's one that's brilliant. I can't remember what it's for exactly, but it's some kind of wheat thin, or something of the sort. Woman rolls her eyes at husband, asking why he has to watch over them at night, in the dark, with night vision goggles. His reasoning? Abominable snowman might get them, or the dog, or the neighbor. She turns out the light, and a second later it all happens.
I know I butchered that, but I figure people will know what I'm referencing.
Edit: Found the link.
http://www.youtube.com/watch?feature=player_embedded&v=acmErrYLWo0