From Tyler Cowen's Marginal revolution, another of those items you won't see anywehre else:
A Texas firm has revealed a personal security drone with a stun gun capable of unleashing 80,000 volts.The firm showed off the drone in a series of shocking demonstrations bringing a volunteer to the ground.It says the drone uses a smart app to track intruders, and once it had received the go ahead from a human operator, it fires taser darts and unleashes 80,000 volts.…Called Cupid which stands for Chaotic Unmanned Personal Intercept Drone, the security product was revealed today at the SXSW Festival in Austin as a concept for the future of security.
Furthermore there is an app:
It can find a subject and send live video to the owner’s phone and ask if you want to authorise the subject or detain them.‘If you detain them, it drops into fully automomous mode to detain them until police arrive, if need be stunning them with 80,000 volts of electricity to render them incapacitated.’
There is more here, with video demonstration. For the pointer I thank Mark Thorson.