I am exaggerating slightly. Not by very much, though; there are a lot of people who have never worked a day of retail who think that I, as the cashier, automatically know where everything in the store is, what is or is not on sale, and how to magically work the system for their convenience.
Most of the bad customers are just not-good customers, who get frustrated over some trivial crap, then just blow it off or get defrosted by a smile and apologies. The actual BAD customers? 5%. Those 5% can go suck a fuck. They can take a flying fuck at a rolling doughnut. A flying fuck at the moooooooooooon.
All right, Digital Hellhound, where's the real Ross Vernal?
No seriously, that exact quote is in DH's sig.