A First.

A week or two ago, a woman became very angry with me for not being able to find a book for her. The author she stated did not have a book with that name, and, upon futher investigation, I discovered no book exists with that name anywhere. Like, in the world, not just in our computer.
I did everything I could, short of writing the damn book myself, to locate it. I read off the author's latest books, I read off his early books that might have been reprinted recently. She finally just walked off after practically spitting, "I can't believe you can't help me find a simple book" at me.

Yesterday she came back in. I saw her coming and turned away to let B handle her; I was not in the mood for confrontation and I really hate trying to smile and pretend I don't remember a person when I do.
After B helped her, though, she stopped, turned to me, and said, "Miss? I'm sorry I raised my voice at you last week. It was uncalled for. You were trying to help."

I blinked about twenty times, said, "Thank you, it's fine,"

Finally! Proof that people do get irrationally mad when I can't find things. And also, proof that those people might leave, realize I'm a real person, and actually feel slightly bad about yelling at me for no reason.

Even if it's one out of a thousand, that's become enough for me.