Man comes through my line and pays with cash. Not usually a problem, except the skin on his fingers was all torn up and I'm pretty sure he was bleeding as he was counting out his cash, and I have to accept these already dirty bills and wish him a good day, and he just leaves and that's that. Sir. Band-aids are a thing. Bandages are a thing. We sell them here. Don't force me to touch these nasty possibly bloody bills and have to bathe my hands in hand sanitizer after you leave.