The new neurology senior resident comes into the room, and you've never laid eyes on him before. He takes your coat off the chair you've been sitting in for half an hour, and says "that's my chair."
He then proceeds to dress you down (in front of everybody) over a note you wrote five days ago on a patient he has yet to lay eyes on (yet he can't even tell you the patient's name). Yeah, it's a real pleasure to meet you. I can't wait to work with you...jerk.