[Line for ladies’ room]Girl #1: Hi, do you mind if I cut in front of you? It’s urgent.
Girl #2: Sure.
Girl #1: Thanks, I have to change my tampon.
Girl #2: [Blank stare.]Girl #1: I have to make sure I change it often. Not too often, because once I changed it too much and got chlamydia.
Girl #2: Oh…[Suppresses laugh.]