Want to shock the hell out of a home intruder? This tutorial video shows you how to build a booby trap for your front door out of a mere mousetrap. The loud snap sound this device creates is sure to "scare the hell out of any intruder." It's just like having a gun around the house. Your mother won't let you put a lock on your bedroom door? Well, this gunshot sound is sure to change her mind. Oh, and don't forget to be safe!