Just starting a thread of stuff you think the general public (should) know... but not necessarily! I'll start... I was hand peeling an orange at lunch, and I used the segments to split it into pieces. My colleague said "I was wondering how you were going to eat that. I didn't know oranges had segments (like a mandarin)" Same colleague: "I didn't know chocolate (Cocoa) came from a plant" (did she think it was a mineral?) Note... this colleague is a vegetarian.... Another individual... almost finished a university (UNSW) property development course (2 courses to complete) and is working for a developer. We were having a conversation on Facebook and I mentioned OTP twice. He had to ask... "what's OTP"? OMG.... Please add your own facepalm conversations!