This is the Skunklock (currently an already funded Indiegogo campaign), a $120 bike lock that contains pressurized noxious chemicals that can make a would-be bike thief vomit when the lock is cut. Heck yeah, I love making people puke. That's like one of my things. Especially jerks who deserve it. I might even cut my own lock.
Keep going for a video.
Thanks to hairless, who agrees the key to preventing bike theft is running at the would-be thief with a ninja sword screaming TURTLE POWER.