when i was 19 i worked at a pizza place, and every friday around 7pm a guy named doug would call to say his large pepperoni pizza showed up with no pepperoni on it. every friday. same complaint, same line: "i paid for pepperoni and i got cheese." my manager, gary, didn't want a fight, so he'd just comp him a free pizza. by week five we had given doug four free pizzas, and i was convinced he was scamming us. i started watching the pizza get made. the pepperoni was always on there. i even took a photo once, with the pepperoni clearly visible, just to have proof. so on week five, gary told me to deliver doug's pizza myself and "figure out what's going on." i knocked, doug opened the door, and i said i'd like to watch him open the box. he looked confused but said ok.