The version of the John Denver story I heard was in the UK, Annie Lennox was the artist and she asked the JWs to leave because they were preventing her from summoning demons.
Another urban legend that is repeated from the platform is the story about the young man who tried to shoot himself in the head to commit suicide because he was being driven mad by OCD. The story goes that by chance he blew out a tumor that was causing the OCD and survived. It's usually used to illustrate the foolishness of a college or university education.
There's the one about the JW sister going to a serial rapist/murderers door and he doesn't attack her. When asked later why not he says because she was with two well built men; she says she was alone in the ministry...oooh *must be angels* Interestingly a very similar legend is repeated amongst mormons.