Sorry to hear about your experience. I've never been to Manhasset, but I've been treated similarly at the smaller contemporary clothing stores here in LA (stores that sell Marc by Marc Jacobs, Juicy Couture, those types of clothes). I sometimes think it's because I don't look like the stereotypical "LA-wannabe actress" type (I never could, even if I wanted to, because I'm Asian). Anyway...it's all about the personal biases of the SAs. I'm guessing that it really was a mind game, like funny said, or that the lady the SAs were helping was an old favorite who's been helped by all 3 at some point in time. The lady was probably like a friend to them, so they felt the need to gather around her. Not that that was a good excuse, but it may explain the behavior.