http://news.bbc.co.uk/1/hi/magazine/4690150.stm I remember seeing it as a kid & it scared the living daylights out of me! I could still remember the closing scene even before discovering this online.
A few years back A French friend asked me why you so rarely saw people over here swimming in rivers, streams, ponds & lakes when it's so common over there. I couldn't give her an answer but I reckon this could be the reason!
RE: A few years back Well that and the freezing cold water and the supermarket trolleys and dead rats!