A young man moved away from his parents to become a student. Proudly showing off his new apartment to a couple of his friends late one night, he led the way to his bedroom, where there was a big brass gong.
“What’s that big brass gong?” one of the guests asked.
“It’s not a gong. It’s a talking clock,” the student replied.
“A talking clock? Seriously?” asked his astonished friend.
“Yup,” replied the student.
“How’s it work?” the second guest asked, squinting at it.
“Watch,” the student replied. He picked up a hammer, gave it an ear-shattering pound and stepped back.
The three stood looking at one another for a moment. Suddenly, someone on the other side of the wall screamed: “You idiot, it’s one o’clock in the morning!”