This is kind of a side note, but I had to share because these tipping threads get to me...

Recently we rented a restaurant for a reception. The service was amazing. The restaurant is known for it's food and service, but really it is one of these places that is above and beyond. The restaurant is not the cheapest place, but given that I've had pretty good service at cheap restaurants and pretty bad service at expensive restaurants I think that fact is unimportant.

The tip was included in the bill, at 15% before taxes.

If 15% before tax is what a restaurant with amazing service expects, why do people expect more?