Once on a long-distance service call, I stopped at a small hole-in-the-wall restaurant, that was in a narrow section of a small mall. There was construction going on in the back kitchen area and I thought they might be closed. But someone came out to the table area and said they were open. So I ordered, and waited, and waited, and waited. Finally the same man brought my meal and drink and the current bill showing cost, and went back into the work area. No one ever checked to see if I wanted anything more like another cup of coffee, or anything else. And after I finished I could not get anyone's attention and after sitting and trying to get someone to come out so I could pay the bill, for about ten minutes, I put the exact total of the bill, in cash including coins, on-top of the check on the table. Beside that, I left the appropiate tip so they might know I did not forget about the tip, one penny.
I got in my car and as I was pulling out, that man came running out and accused me of skipping out without paying. I calmly said, I put the exact payment amount for the bill on the table on top of the bill, and I also left an appropiate tip.