Anomaly Night Shift [HORROR]

You have the night shift at the only store still open. Customers come to the window. Most of them are people. Some of them are not. You have a scanner, but only a few charges each night. Every night the store posts a new rule about what to look for. The rules are not always right. Serve them. Between customers, work the small jobs around the store to earn more. Refuse the wrong customer and you lose your pay. Serve the wrong one and you do not finish your shift. Stay until morning.

Serve the customers at the window. Take their item, ring it up, and take their money. Use your scanner to see what a customer really is. You only get a few scans each night, so use them carefully. Read the rule posted at the start of each night. Then stay alive until morning.