Unpopular Bookstore-The Smart Consumer

This is a supposedly true story that occurred to my friend Andy:

Andy:I wish to purchase a book for a friend of mine
Shopkeeper:Hi!Welcome to Unpopular bookstore? What books would you like to buy?
Andy:The gift variety.
Shopkeeper:Errm..what exactly?
Andy:A book. Something with pages, words, made of paper.
Shopkeeper:Could you be more specific?
Andy:A fantasy?
Shopkeeper:Just a little bit more specific
Andy:Hmmm...maybe it should have magic in it?
Shopkeeper:Oh man. A hard case.
Andy:On second thoughts, I'll be a little more specific. It should contain supernatural aspects
Shopkeeper:Sir, would you like to look for the books by yourself.
Andy:Fine, fine. You guys are sure friendly

Later...

Andy:Okay, I purchased the books.
Shopkeeper:Lets see; Conversations with god, Raising Hell, and Be a Lawyer:How to benefit from the arguments of others
Andy:Neat choice of books,eh?
Shopkeeper:Right...that would be 99.99 SGD(Slave's Grand Dollar), please
Andy:Fine, fine.(digs in unidentifiable places).Here;
Shopkeeper:Is that a gift cert?
Andy:No, five twenty percent coupons.
Shopkeeper: You can't use coupons together!Just read line 7
Andy:Didn't see anything. It says; Coupons can ot be used together.
Shopkeeper:Let me see that.....looks like a typo to me.
Andy:So the customer's supposed to pay for your mistake?
Shopkeeper:arrrggghhhh..fine, your purchase has been accepted.If you have any questions, please hessitate to ask.
Andy(slaps two 50 dollar bills):here
Shopkeeper(dim amount of hope entering his eyes):Cool!So you wanted to pay after all?
Andy:No. Actually I wanted the change....in pennies.
Shopkeeper: arrrggggghhhh
Andy:Really barbaric people in a bookstore. Who would have guessed?