Mistake to believe they will remember your tip. Went to an AMP on Wed, nice girl nice service tipped her .2 and she was greatful. Returned last night with a buddy (ONE FREAKING DAY LATER) and the same girl from the day before asks me if I've ever been here before. DUH!! Would she had remembered me if I gave her a more generous tip, maybe, maybe not but who the f*** cares. Her service was even better the 2nd time, still gave her .2 These ain't NASA Scientists!