I haven't. I've been told the glass moves around spelling stuff out. My brother, before he became a dumbdub said it happened to him - but he was pretty young and probably p'd. Movies and tv play along with it. I'm trying to establish whether this stuff is 100% imagined by believers - so far non believers don't seem to experience any thing supernatural.
Of course the believers would say that nothing happens to us coz the devil already has us! Ya can't argue with that :-)
Marilyn