One time when I was conducting the WT study, I was trying to convey the importance of not hitting a newly interested person with too much information at once. I said...
Me: "For instance, if we're having a good conversation with someone at the door--and they're smoking--should we feel the need to tell them how wrong smoking is?"
Commenter: "No, we don't want to pull the rug out from under them."
Me: "Right, we can do that later."
Everyone laughed, but it took me awhile to understand the humor.
Once, during the Memorial, when my daughter was maybe a year and a half old, the bread was being passed by us on a silver plate. It was dry and curled up in a familiar shape to her. While everything was completely still and quiet, she said in a very loud voice, "TACO!"
For a time we had a very old woman who was studying. We found out later that she had some type of chronic digestion problem. Nearly every meeting she would walk back to the ladies room, but just before getting there she would release a rapid-fire succession of explosive flatulence, easily heard throughout the Hall. How exactly do you continue conducting a Book Study after that?