Remember the Neutron Bomb? For all I know, we actually have some. The idea is low-explosion high-radiation nuclear weapon. It would kill all the people but leave most of buildings intact. Whenever I'm out shopping on the weekend, I think of such things. Of course, there are a few people I'd save.
Today's icing on the cake was stepping in gum some inconsiderate asshole left on the ground. The bastard should be shot!