|dbojan (Bosnia and Herzegowina)|
Door answering machine
At 8 am someone is ringing at your door, for half an hour. Enough to wake you up, but not enough for you to get up. If only there was a button marked "Press here to leave message". After pressing it, the message would be videotaped (or audio recorded only in cheaper version). You could find out who it was and what he or she wanted.
Based on a true story
Reward: An orange. (I am thirsty right now.)