What was your worst restaurant experience?

Not too long ago there was a thunderstorm in San Diego where it was raining buckets. Luckily we were close to my Daughter and I's favorite old school Chinese place so we decided to grab lunch until the rain stopped. The decor of this place hadn't changed since the 70's, marbled mirrors popcorn ceiling etc.. The roof was leaking everywhere so they had to put us right next to the only other occupied table in the place. Sitting next to us was a priest and two homeless guys. He had taken them to lunch and was propositioning them to come back to his place. "Do you like brandy?........". He has holding one of the guy's hand and rubbing his shoulders etc.. It was so creepy and gross. During their meal one of the homeless guys that was in a wheelchair shat his pants. The smell......Anyways, while the priest took him to the restroom we got our food. I paid our check, gave our food to the remaining guy and we left never to return.