Sam, a student, was proudly showing some friends his new room last one night. In the corner was a massive metal dish, and a friend asked, "what's that for?"
"Oh,that's my talking clock," Sam replied. "Watch this." He hit the dish hard with a hammer, making a really loud noise.
Suddenly,someone on the other side of the wall screamed. "Be quiet! It's two o'clock in the morning!.