VERY true story: This occurred in Puerto Rico
This hall had cordless microphones. During a Sunday Watctower meeting, one of the brothers in charge of passing out the mikes had to go the restroom. He waited for the proper opportunity (while a long paragraph was being read) and decided to go, inadvertantly taking the microphone with him.
The reader is halfway through the paragraph, and all of a sudden some strange noises start coming over the speakers:
"Those goddam rice and beans AAAAAAHHHHHHHH........(fart)........... KERPLUNK! (It all sounded funnier in Spanish)
The congregation ROARED with laughter, so loud that some of the neighboring business owners poked in wondering WHAT was going on.
It was reported that the brother in the bathroom never ever showed up at that particular hall again.