It's sad, but the guys who work at my LHS usually start laughing as soon as they see me coming. I'm in there constantly so I've gotten to be pretty good friends with the folks who work there.
One day I walked in and the cashier looked at me and, before I could even open my mouth, she says "We don't have it" and started laughing her a$$ off. I responded by saying "I came here looking for good customer service" and started laughing my butt off. Turns out, they didn't have a single thing I was looking for, but I had a great time that day anyway. I think I ended up hanging out there for a few hours and ended up answering the phone for them when they got busy. And they didn't even pay me!
I swear - I get no respect.