Dis-Alarming Clock

This item is supposed to be used like an alarm clock. Just like any alarm clock, you use this to wake yourself up in the morning at the necessary time, being able to control when the alarm goes off down to the minute. What makes this different from other alarm clocks is that once the alarm rings, you have 10 seconds to wake up and cut the correct wire to stop the alarm. If the right wire is cut, the alarm will turn off, and be reset for the next day (the wires reconnect after being cut through the power of magic fairy powder). If the wrong wire is cut or the alarm is left alone the alarm clock will explode, destroying everything in a 1km radius. See, the ingenious idea behind this clock is that the person must wake up and be alert enough to cut the right wires, or else you'll die. The wires are automatically randomized every day so that you'll be alert and sharp every day. And just to make sure that you're alert, there'll be times where the alarm is false, and cutting any wires would mean death, adding to the alertness you'll need when disarming the clock. It also runs on solar power, so it doesn't use any electricity!

The best part is that it doubles as a sandwich maker.

NOTE (from Alex): It may be advisable to tell your neighbors when you're going to be out overnight so that they can deal with the clock in your absence. You can ignore this completely if you're like me and you hate your neighbors though.