This happened to me recently when I was shopping for a new commuter. First I had a clerk who kept trying to sell me blinky "be seen" lights when what I needed was a "to see" headlight. ("But these are so cute," he said.) I specifically asked about dyno lighting, which that shop didn't sell. Can you order it? Blank stare. I even asked whether they could install a wheel/hub for me if I ordered one and brought it to them. By this point the shop owner was involved, and he just kept asking me why I didn't want to use battery lights. I resisted the urge to ask him why he didn't do the same for his car lights. Added to the mix was a good bit of truly obnoxious women-can't-possibly-know-about-bikes attitude. Frustrating. The sad thing for the LBS is that they lost not only a sale, but also a customer who will regularly bring her bike in for servicing.