Sparks

I find myself at the local 7-11, standing in line with a case of Fat Tire beer. There is a short line in front of me, two people to be exact.
The man at the front of the line is nearly finished paying and completing his transaction, and the man directly in front of me is smiling along to a catchy pop tune on the radio; the atmosphere is somewhat pleasant.
We'll call the man directly in front of me "Bill", for the sake of being a bit more personal here.
It is time for Bill to purchase the items he has collected at the store. He places them on the counter, a four-pack of Budweiser tall cans, and what I believe to be a snack food in a blue wrapper.
Bill and the man working the cash register exchange a few words of small talk and suddenly Bill asks the cashier, "Do you guys sell any Codo beer?"
"Codo beer!?", the cashier replies.
"Yeah, my friend told me you guys sell Codo beer, where would I find it?"
"At the Codo Beer Store? I don't know, man, we don't sell no Codo beer! I've never even heard of it!"
The cashier glances over to me, we exchange humorous grins.
"My friend said you would have it here.", Bill says in an almost accusatory tone.
"I'm not jivin' on you, but we don't sell no Codo beer! You're gonna have to look somewhere else. Why don't you get a Sparks or something?"
Bill accepts the fact that Codo beer is not sold at this 7-11, and engages in more small talk. The cash register adjacent to the one Bill is at then opens, it is my turn to purchase my selection. I step over to the register, greet the cashier, and pay for my case of beer. I have difficulty in remembering my PIN number for my debit card, thus having to complete the transaction by pressing the "credit" button on the card reader.