I was on a date with some guy. and I went to the bathroom. The waiter apologize to my date for having to eat alone. Later the waiter came with our food. we had ate for awhile and was about half way done. the waiter asked "is the food okay?" and we said, "yes, it's good." he then said "no spit or hair or anything in there?" .. we literally dropped our silverware at that moment like WTF. he did something else, forgot what, that was also disturbing, and he never brought us anything when we asked. We ended up giving him either no tip or a very SMALL tip.

i tip usually very good. at least 20%, however bad services =no tip or small tip.