Nice.<p>What about the random vandal, who may not be interested in stealing your bike, but will damage or destroy it? Do they fit in your threat model or is that a different risk pool?<p>Wild tangent: Phone companies used to be very stingy with their tools; locked up at all times and such; but the materiel would often be left out and they wouldn't care if an entire spool of wire vanished. The Power company was exactly the opposite: the wire and transformers and consumables would be guarded but the toolboxes on the trucks would be unlocked and full of goodies.<p>Between the two, there wasn't much you couldn't pick up at a total discount.<p>Both these companies thought through their threat models, and somehow arrived at a situation that had all other construction in the city less worried about theft: i've always wondered how that came about.