Many years ago I drove a trash truck. There was a small strip mall on the route with dumpsters behind it. There were cats everywhere back there.
Then a Chinese buffet opened in the strip mall, and within a year you could not find a single cat. I have no idea if maybe something legit happened but the cats all disappeared and we always joked about it. never ate lunch there.
Much more recently I found myself called to a Mexican owned Italian restaurant, yeaa. This place is sketchy from the get go, but I go back to the kitchen and find that the overhead door w a broken cable is being used as nothing more than a wall behind the stoves.
I help them drag the stoves away from the door so I can access he door and we found a pile of food, about 9-12" tall the whole lenght of where the stoves sat. DISGUSTING!
Not to mention the tracks for this door extended out over the food prep area and were filled with black dust/gunk. DISGUSTING!
I won't even order a drink from this place, let alone food.
And finally, the wife and I were at a DQ and the guys gives us our order. We go to a table and get ketchup/napkins ready and stuff then sit down to discover he gave the wrong order to us. We had this food in our possession, out of the clerks line of sight, for a significant time.
He had no problems correcting the order but I watched him put the food he originally gave us back in the queue.
I dont go there anymore.
Basically, I see enough of random peoples homes to know that a great many people are horrible slobs and they have no problem with that. I assume that there is a very strong possibility these people are slobs in their workplace as well.
In order that I don't starve I'm willing to assume a restaurant is clean, unless there are severe tells that it is not clean. But the first time I witness something that I wouldn't do/allow in my own house is the last time I go there.