I was shopping for some Christmas gifts in H&M a couple of years back
Being a man, I took the most direct route - walked in, picked up the items I needed (hats and scarves, mostly) and marched them straight to the counter. No faffing, no trying stuff out, no waiting around unnecessarily, I was in a hurry so straight in, buy the stuff, straight out. Except when I got to the checkout, the till girl was distracted and ignored me, staring instead over my shoulder.

"It's Rachel Stevens!" she exclaimed. I turned around, and saw, yes, it was indeed Rachel Stevens. I went to hand the till girl my potential purchases, but by now she had started pulling off a length of till roll and was making a list of things Rachel might need, calling over other staff to go and attend to her. I coughed. She studiously ignored me.

"Hello, can I just-" I began.
"Stacey, can you go and get some bottled water for Rachel, and see if we've got any of those-"
"Excuse me!" I shouted. "Paying customer here! I may not be in fucking Steps*, but I'd like some service please!"

Suffice to say she got me out of there sharpish before Ms. Stevens got within earshot of my crude language. I couldn't care less if she's a sleb, it's the attitude that she needs more attention and free shit than the rest of us that pisses me off.

* Yeah, yeah, what-the-fuck-ever.
( emvee cruor deo cruoris, Fri 9 Oct 2009, 12:42, Reply)