I thought I'd give my (new, I've just moved house) LBS a visit .
I needed 2 disk brake adapters, and long story short, the guy was dismissive, told me I was wrong when I asked for a certain size adapter, and was generally unhelpful. The other staff in the shop practically ignored me.
To prove I was right about the adapter size, I returned later with frame, fork and brake in hand. Carbon frame, hope wheels, formula brakes.
They were suddenly climbing over themselves to help, with 3 guys crowding round, offering advice. I was ushered to their glass cabinet, where they proudly showed me the XTR groupset that they had for sale!
When they thought I had money, they couldn't help enough - shame they weren't a little better when I was looking for the basic parts.
Made me laugh, anyhow. (And I was right about the adapter too!)