Defusable Time Bomb Alarm Clock- Wakes you with a bang if you are slow

Here is one that uses water to keep you away from the snooze button:
<a href="https://www.neatorama.com/2012/01/28/water-powered-alarm-clock/?utm_source=feedburner&utm_medium=feed&utm_campaign=Feed%3A+Neatorama+%28Neatorama%29" target="_blank" rel="nofollow noopener noreferrer">Water Powered Alarm Clock - Neatorama</a>