Backpacks in the Library

I was standing on line at the library, waiting to take out some books, when I noticed there was a guy with a backpack on standing in front of me. The backpack had a picture of a monkey on it, and would have been cute, had the s word not been displayed on it in capital letters. I rolled my eyes and really wanted to make a comment to the owner of the backpack, but decided against it, as the guy was probably about six feet tall and taking out some horror movies. Had he been a little shorter and taking out some books, however...