"Second hand, unboxed, £80. But someone's already reserved it for tomorrow."
"How about I come in for it on Friday?"
"Chances are you'll be coming in for no reason, someone has put a deposit on the console already."
"So how about you just forget about that deposit and I buy it?"
"But you don't seem to have the money until Friday, as you just mentioned you couldn't buy it until then."
"I'll give you £100 for it on Friday if I can have it now."
"Erm, I'm afraid not."
"Why not? Is it because I'm black?"
"No, it's because you're not a very good customer, who, if I remember your face - which I do - reserved a PS2 before and never picked it up. I wouldn't give you 50p on credit for a can of drink, let alone a whole console's price. Until you prove me wrong by showing me the money to buy the console, I'm afraid I can't do a thing for you."
"Meh. Well, I'll rent this then."
"Okay. I've just looked at your account and you have £25 owing on it, and you told another member of staff that you'd die before you'd give them that money... not really your day, is it?"
He skulked out, screaming profanities. Account closed.