This conversation I had at work yesterday made me chuckle as it was said do nonchalantly, yet would definitely have caused raised eye brows if overheard in public:
co-worker: I’ll need to get it done today, I can’t do it tomorrow because I’m going to prison.
me: Oh me too! Which prison are you going to?
What totally normal conversations do you have at work that would sound dodgy in public? Perhaps people would like to play guess the occupation too?