I have another one. The people where I work call my patients by "Mister (First name)" or "Miss (First name)".

Example: "Here's Mr. John, Doctor," or "Miss Stephanie needs a refill."

I refuse to succumb to this odd local dialect. I'm still calling patients "Mr. (Last name)" or, only if I know them well, by their first names without the Mr/Miss thing.

Bears, beets, Battlestar Galactica.