I guess one of my favorites was while working in the bar... the dear young co-manager didn't want to offend me (evidentally some female had him well trained!) so he stammered a bit and finally just said I looked nice and, um, wasn't I, um, BIGGER before?

Contrast that to one of the customers who fancies himself smooth with the ladies... he waited until I bent over to get beer out of the cooler and says "Whatever you're doing, it's working..just don't go losing your boobs."