<human>: Can you provide a brief overview of the text?

Obligatory happened this past weekend, only heard about it this morning.

**Backstory**: So I work at a grocery store in the kitchen department.  Not the best job but it's decent pay for a college student. 
Our store has fuel saver program (which is if you buy a product or certain amount of a product, you get X cents discount on gas).  My manager had decided to put a bunch of our premade salads on sale, so you got 20 cents off per gallon per pound of salad you buy (Decent deal, but you can honestly make it at home from scratch and save more than you would from the fuel saver.  IMO the salads are way overpriced but are what you should expect for 70-80% margins typical in the industry).

**Here's the fuck-up**: a customer ordered a pound of a salad that we had problems with our tagging system. It should be $6.99/lb but would ring up as $0.01/lb.  Not a big deal, you can manually change the price to the correct one.  So I did that and went on my way.  

Remember when I said the salads had a 20 cent fuel discount? You'd think changing the price wouldn't change the fuel discount.  WRONG - turns out that the system decided to give her $140 off per gallon.  Not $1.40, $140.  A ~700x increase in the price lead to a 700x increase for the fuel discount. That's right, with gas around $2/gal here, she probably didn't need to buy any gas for a while.

**Fallout**: From what I've heard, the lady was honest enough to note the mistake and get some of it removed as it was a clerical mistake. I however got a nice bitching at from upper management during which I told them that we've had the pricing issue on that salad for MONTHS and they never fixed it despite me and a couple other coworkers reminding them weekly.  Got threatened with a write-up after which I straight up told them if they do, they can consider that my 2 week notice.  They said not to worry about it and will work on getting it fixed.
<bot>: Grocery store I work at has fuel saver discount.  Sold a lady a pound of salad thinking it was $0.20/gal discount.  Ended up being $140/gal.