There was this story (true or false, but given as true) in the French Bethel that once a very tired brother who was in charge of the phone switchboard was asked to say the lunch prayer and unwittingly began with the standard introduction: "Hello, Jehovah's Witnesses speakin'"
lol.... I also heard of one JW at the French Bethel who fell asleep during a meeting and awoke half way through the talk thinking that the meeting had ended. He began to clap enthusiastically. When he noticed that people were turning to look at him, he began to clap around his head pretending that he was trying to trap a mosquito....lol A prayer faux pas to remember was that of Milton Henschel who closed an assembly with prayer a few years ago saying, "Jehovah, we approach you through your Organization" - a Freudian slip which he quickly corrected. Still I guess that is better than the JW who once suggested in a talk that 'Jesus was ressurected and now had exactly the same kind of immorality as his Father". Best regards - HS