There are a lot more of these type diners around than people think.
Most are local owned and have to serve properly or they cease to operate.
Example; there is a donut shop that a good many of us went to for coffee and donuts in the morning. The gal who owned it asked us to leave because there got to be quite a good bunch who went there for about an hour in the morning and she insisted that we were taking up all the space for others...which wasnt true. So we all went to another place, and she is out of business as we let everyone know she seemed to not want business.
I would’ve said, we are the others. Ownership doesn’t make them smarter.