Do you really live in a fantasy world where you go to a store and never have to ask for anything?
*Walks into Best Buy*
"Why hello good customer, are you looking for something specific today?"
"Why yes, actually, I am looking to purchase a PSP."
"Oh well, right this way my good man, would you like a complimentary cup of coffee and free danish?"
"No, not today, I am in a hurry, I am to see a movie."
"Well, by all means take your PSP and be on your way, Come back later, after the film and I will charge you for it."
"Why how generous of you."
"It's our policy, here at Best Buy."