(As I am ringing up a customer at my register, I try and make conversation.)

Me: “How’s your day going?”

Customer: “Excuse me?”

Me: “How’s your day going?”

Customer: “What an absurd thing to ask someone you don’t even know! How dare you!”

Me: “Okay? I’m sorry.”

Customer: “I don’t care, don’t ever ask something like that again!”

Me: “Bye.”

(I guess she was having a bad day.)