If I see a dirty bathroom, I'm out. It reflects kitchen hygiene too.

Flies when it's 20 below outside.

Where are they breeding?

I do pest control for a living, and I used to LOVE small mom and pop restaurants, especially taco places. Now 5 years into my profession I know alot of subtle warnings a place has a bug problem, one being a smell. I make a point to sit as close to the kitchen as possible just to get a true smell of what's going on back there.

3/4s of all taquerias have roaches from what I can tell, and I'm eating flavorless garbage from a chain restaurant who's kitchen is clean.

Blasting loud music will send me back out the door before I can sit down. Doesn’t matter how good the food is, I’m not sitting through that nonsense.

I didn’t even have to go into the restaurant…I was at my local bar and the head cook from the restaurant across the street started coming in after his shifts pretty regularly.

Just an overall sloven dude with the grossest habits, body odor, funky skin growths, unkept fingernails and similar demeanor.

None of the other regulars, including myself will ever go back there.

Honestly a sushi place that reeks of fish. Made that mistake once, it was not comfortable afterwards.

Dirty floor.

Ants in the salt shaker.

Political shows playing on various TV’s in the joint.

Flags or posters supporting a geopolitical stance that I radically disagree with or supports killing people like me.

Wife and I walked into a diner once and were seated. Waitress came over and handed us our menus. Her make up was so caked on that bits of it were falling on our table. 🤮 She then showed us the salad bar which was a card table set up next to the front door, not iced or anything with bowls of potato salad and macaroni salad with saran wrap over them. We got up and left.

TL;DR: When cooks don't wash their hands.

Went to a restaurant the other day and then to the bathroom shortly after being seated. While standing at the urinal I saw a cook come out of the stall after dropping a deuce and head straight out the door without washing his hands.

That's how people get trichinosis and I don't want to end up like RFKjr with worms in my brain.

I went to a diner near me recently I had never heard of. There was no one eating at the tables inside. The woman who was at the front entrance walked away into the kitchen when I walked in the door. Then a dude came out of the kitchen and stood in her place and refused to acknowledge me. Then a girl came up and said something to him and he said I know I know just calm down it’s ok. Then she scurried off into the kitchen. I asked the guy if I could see a menu and he said “she’ll be right back”. I left. I don’t know what was going in there but I will never eat anything from there.

Any bad Smell.

Multiple babies/toddlers roaring loud enough to wake the dead.

Walked into a restaurant and i smelled sewage. They said a sewage back-up had occurred and was being fixed by a plumber. I left anyways because the place was running like it was normal. No windows open or fans running to try and flush the smell. Ya it was warm outside but seriously I'd rather sweat than smell s**t while eating.