Crack kills

I know it has been a long time since I've had a post.  I apologize, but things have been crazy. My job is going fairly well I suppose. It's not as interesting as the other library, but there's not much I can do to change that. Yesterday we had this girl come in, probably in high school, with half of her ass showing. Seriously, half of her crack was showing...and this was standing up. My coworker kept saying "crack kills" really loud from the back. Anyway, this girl was a BITCH. I guess the printer spit out a blank sheet of paper and charged her ($.10) for it. She was yelling about it and throwing a fit, so we gave her a refund. I wanted to throw a quarter at her and tell her to buy new pants and a new attitude. I also was pretty close to yelling back. Dealing with the public can be frustrating. I don't understand how some people can be so rude, especially over a fucking dime.