I was watching Rehab (at the hard rock cafe) the other day and some girl went nuts on a customer for only tipping her 200-300 dollars. I can't stand it when people think they are ENTITLED to a certain amount of tip money. I don't believe in the %s. Just because I picked out a more expensive meal doesn't mean I should tip you more. Now, if there are more people at the table, then sure. The "standard" tip should be X amt of dollars per person instead of 20% of the total bill, IMO.