thats fucked up buzzuk, me and my mate had a similar experience once. we'd just scored some and we were having a smoke up in the woods in thorpe hamlet, near my old dealers, when we noticed something moving around in some bushes. we soon realised it was human and on closer inspection we found some guy with his trousers down on the floor having a shuffle, so we asked him what the fuck he was doing and he says " whats does it look like im trying to have a piss so fuck off " we were pretty spooked out by it all so we just walked off.
who knows why people do that kinda shit