Erasing Common Sense

(My friends and I often stay in the library during lunch, and this is one such time. There is a small area with couches in the center of the library, and I, my friend, and a lot of her friends are sitting there. Randomly, a girl throws an eraser at someone else, and the eraser equivalent of a food fight ensues. I do not participate. At one point, it gets exceptionally loud, with everyone laughing and yelling. I figured, this is a library; we shouldn’t be doing this.)

Me: “Stop throwing erasers!”

Librarian: “[My Name], don’t you know better than to yell in the library?”

Me: “But…” *everyone else is still throwing things at each other*

Librarian: “You know better.”