You get weird shit in weird places like lone odd shoes that you see on the motorway grass verges. I'm not sure why people dump stuff like that.
I mean, I don't have a car, you see, so I travel by rail. I would add to the observation, however, that there's all sorts of abandoned shit by motorways because you're average selfish bastard has no respect for the environment anyway... Perhaps the answer lies there.
It may be easy, but that doesn't make it right.