When I was a baby medic*, we were given a talk by Dr Noob, the author of a now-popular textbook, who gave us a grave warning about why you should never accept chocolate from a doctor.
Dr M patted Dr Noob on the shoulder. "If I were you, I'd stay close to the toilet today, old chap. Wet pants flop a lot when you walk. Cheers!" And off he went. And you can imagine what the rest of the day was for poor old Dr Noob.