I see that all the time. Is that a quick-release wheel too? The worst part is that given a spoke wrench or even a cable-cutter and some spare spokes even the front wheel could be stolen too.
Yep, it's quick release. Strange isn't it, I'm always so paranoid when I lock my bike up anywhere yet some people happily do this. Maybe it's a good thing...their bike will be nicked instead of mine!.