The Devil's Checkout
When one is clearing the rubble from their Dairyaire after a particular nasty number 2 session. Without the proper tp coverage allowing, ones finger to slip from behind their paper based armor. Brushing against ones said Anus, very much like a checkout clerk would scan a item. And when not hearing the beep of that item, called for a price check...Smelling ones fingers
Sorry I am late had to wash my hands, went though the Devil's checkout and got hung up on the price check