I worked in a restaurant and someone called the health department on us. He stepped in the walk-in for about 2 minutes, looked at the make line, said “Nothing seems rotten to me” and left.
It stemmed from a lady claiming she got food poisoning from our food, but the timing was pretty fast, and half the ingredients were fully cooked upon delivery stuff anyway that just got heated up in the oven. So honestly, we figured she probably got it from something else and the inspector probably thought the same thing.