“You overslept” Prank

This prank is great if you have teenagers who always hit the snooze button on their alarm. You will have to be up at least an hour before the victim is supposed to be. Then, change all the clocks in the house to a later time, say from 5:30 a.m. to 8:30 a.m. Now, to the best of your acting ability you have to wake them up and tell them they overslept and are really late for school.