Karyn was afterschool trying to work on yearbook, she was snapping a picture in the gym as Sarah came out of the girl's locker room (without looking) and ran into Karyn. The strangest thing then happened...their heads popped off...
Sarah and Karyn both moaned, "Ugh! Not again!"
Sarah's head spoke (now on Karyn's shoulders), "Karyn, you loser, why don't you watch where you're goin. Don't you remember that when people run into each other accidently they're forced to trade heads?"
Karyn just looked wide eyed at Sarah...something about this all seemed wrong...then it hit her....