I debated about posting this, since it deals with bodily functions, but here we go. Mods, feel free to remove if you don't think its appropriate.
Personal bathroom habits. Specifically #2. I had a former BF tell me there was something wrong with me, unless mine was limited to one per day, first thing in the am, like him. Um, ok, but that may work for you, but hey, I do what works for me, and that isn't it, so drop it already!
A second funny story deals with my grandmother. Who was 93 when she fell and broke her hip, and had it surgically replaced. And was on pain meds, which, for lack of a better term, can stop you up. My grandmother was of the school where you had to go once a day, or something was wrong. She was so agitated at the fact her meds wouldn't allow her to follow this, she gave the orthopedic surgeon what for when he came in to check on her hip. Poor man didn't know waht to do!