I've always wanted to ask the rando where is my kid who they took to see the kitchen.My favorite is you go a restaurant, you get seated by a host person, you have a server introduce themselves, you place your order, the food arrives and then someone you have never seen comes by to ask if everything is ok. There are so many possible replies, but I always tell my wife that I want to ask, "Who the f#ck are you, and why do you care."