I was buying some shoes at Kmart or Target and the checkout lady looked at me and said these are not for you are they? I said yes they were and she asked again, and again I said, yes. She seemed pretty stunned. I just smiled while she rang them up and gave them to me. I was really tempted to pull out a picture of me enfemme and show her, but I decided not to. I think in most cases its best just to give a nice responce even though they may seem rude. You never know who may be watching and you never know if their attitude may change if you "turn the other cheek". At worse, they may think you are a little weird, but still a nice person.