Clocky is an alarm clock that runs away and hides when you don't wake up. It gives you one chance to get up, but if you snooze it jumps off your nightstand and starts wheeling around the room looking for a place to hide. Yeah, I'm sure it's as annoying as it sounds, but at least it'd force you to wake up. As would a ninja that really really needs to be on time. Silent assassins are punctual as hell.