My sister was cleaning the computer screen this morning. With four kids who have learned about the joy of Webkinz and the internet, there's no shortage of fingerprints on the screen.
Her 3 yr old son walked in and saw her wiping off the screen, which lead to the following conversation:
3 yr old: "What are you doing?"
Mom: "Cleaning off the little finger prints all over the screen. Hm, whose fingerprints do you think they are?"
3 yr old: "Um, well...It could be the mouse...because it turns into a little hand."