It could be where I grew up but I find that every congregation that I have been in has had at least one whacko!
For instance, when I was little we had one brother, his wife and daughter played the piano and organ (at the same time). They were both strange themselves, but this brother would clip his toenails during the meeting. Later it was uncovered that he had molested his daughter.
I also remember my dad telling the story of how he went to a witness funeral and a fight broke out, knocking over the casket.
Of course, that was back in the 60's, but I find even today, that the message seems to attract all the social rejects.
How many weirdo's have you encountered in your hall, past or present?
"By doubting we come at truth" -Cicero