A burglar breaks into your house. Even though the alarm has sounded and alerted police, he reasons that he has two minutes to grab your valuables and escape. Easy enough, right?
Wrong. The house he has targeted is now rapidly filling with fog. He can't see anything.
Fog Cannon is a South African company that manufactures unique home security devices. When one of its alarms is triggered, it sprays out a fog that doesn't hurt anyone or damage your furnishings, but it reduces visibility to nearly zero. Its most powerful system fills 2,700 cubic meters of space in just 60 seconds.
-via Contemporist
This sounds like the perfect way to accidentally kill your entire family, with the assistance of jumpy police, false alarms and mistaken identity.