You haven't done any work all day.
That's what a patron said to me after she dropped a stack of books and her library card in front of me at the reference desk. I told her that if she wanted to checkout her books, she would have to do so at the self checkout or with a clerk on the 1st floor. That's when she told me that whole mess about watching me. If she really had been watching me, she would have seen that I had just returned to the reference desk. I had just shown a patron how to use the self checkout machine.
I was so tired of kooky people yesterday, I didn't even argue. I said, "I'm sorry that's not something that is done at the reference desk.