From that receipt, it looks like she left NO tip since her handwritten amount is the same as the food total amount (notice the 18% amount is crossed out and 0 is written in for "additional tip").
The tips have to be split between waitress/bus boy/bartender in these places so 18% is not unreasonable.
41 posted on 02/01/2013 1:51:08 AM PST by Abby4116