Breathalyzing bike lock keeps tipsy cyclists from riding drunk
 

You'd be surprised by the amount of damage and havoc that an inebriated bicyclist can inflict just by swerving through traffic, ignoring stop signs or falling off their bikes into the paths of oncoming cars. To prevent this sort of thing from happe...

http://www.engadget.com/2015/08/09/b...cid%3Drss_semi