Ok folks this is my train of thought when I was reading thru this. I never worked in a resturant so forgive me if I don't understand the ins and outs of waitressing.
If each table tips 10 to 20 percent, either one person pays it or two couples pays it, that is generous. Now, if the waitress is responsible for five to eight tables, think of how many tips she will give in a given hour, if everyone sits and eats in an hour's time. That is pretty good including her hourly wages. Not bad but not the best, mind you. Around here, it is either at the three dollar an hour PLUS tips or minimum wage of $8.00 WITHOUT tips. I don't know if every resturant would give the waitresses a choice in how she wants to be paid.
We normally give them anywhere from ten to twenty percent. With Illinois, the recession is hovering over 12 percent, the waitresses do their best in the trying times and understands that the patrons do not tip as big as they used to, so in order to make up for it, they would serve more tables even it would run her ragged at the busiest times.
The WORST tipper is my FIL!!!! I was sooooooooooo appalled at that gesture in EVERY resturaunt we went to including Pizza Hut. OMG! The looks of the waitresses every time he comes in, they are like oh no, no tipper here and they didn't give him the service like anyone else. That I can understand that! With my husband and me, we tip our portion and our FIL said that they do not need tips. Why, we asked. "They can work for the wages they are getting hourly and they are not getting anything else from me. If they want more pay, they should not work as a waitress/waiter!" Oh for Heaven's stakes! So everytime we get a chance to eat out, I would personally hand the waitress our generous tips and next time they saw us with our FIL, they bent over backwards in giving us good or excellent service and gave FIL and his wife crappy service.