Have you heard of the skunklock? The only bicycle, motorcycle, scooter, and moped lock that can stop thieves by causing them to gag or puke... if you've ever tangled with a real skunk, yeah, that happens

a year and a half ago they raised 262% of their Indiegogo goal.

any existing bike lock can be cut within a minute, and that's why 1.5 million bikes are stolen each year.

So this invention from San Fran packs a stink punch when a thief tries to cut it

SKUNKLOCK is a hardened medium-carbon steel U-Lock that's as difficult to compromise as the strongest U-Locks, AND comes with a surprise: it's pressurized inside with a noxious chemical deterrent that slams the would-be thief with noxious chemicals. The chemicals are so disgusting they induce vomit in the majority of cases, and elicit an instinctive response to run away immediately.



http://mz-across-usa.blogspot.com/2018/06/art-design.html
https://www.indiegogo.com/projects/skunklock-the-lock-that-fights-back#/