Many years ago, I worked for a fancy gift boutique that sold candles, perfumes, lotions and other random items. We were located in a shopping district with heavy foot traffic, so our store was always busy.
One weekend, we had a promotion for lotions where if you purchased one, you'd get two for free. We were trying to clear out old stock, so this was the best way.
A woman came in, grabbed a shopping bag, spotted the sale sign and proceeded to fill her bag to overflowing. I watched, impressed, from the other side of the store as the shopping bag's seam strength was pushed to its limit.
The woman then waddled over to me and asked me how much her total would be. She was beaming, saying, "I can't believe this amazing promotion!"
Keep in mind, this was a fancy, upscale boutique, so each item was pretty pricey. The promotion was indeed amazing if you were looking to treat yourself or to scratch a few names off of your holiday shopping list. The woman had filled the bag to capacity, so while she would receive quite a lot of goods for free, she would definitely still pay quite a large total at the register if she checked out. I counted and it would have been a little over $300, plus tax.
I told her this, and her eyes bulged out of her head.
Lady: But..but the sale..I don't understand. Why is it so much?
Me: Because you are paying for a certain number of items, to get two additional items for free per item. Your total based on those items comes out to $300+ aside from the sales tax.
Lady: But if I'm getting items for free, how am I paying so much money? I don't get it.
Me: stares blankly
Lady: Never mind.
Then, without warning, she let go of the shopping bag's handles and angrily rushed toward the door. It all happened so quickly, yet somehow, with cat-like reflexes, I caught the bag's straps just before it hit the floor and crushed my feet. By some miracle, I did not sprain my wrists. The bag weighed a great deal.
My manager rushed over to make sure I was okay. She was super pissed and called security to locate the woman, but they failed to do so. The manager told me to keep an eye out for her and to alert her if she ever came back.
About a week later, the woman came back in, acting as if nothing had happened. I immediately went to the back to alert my manager, who stormed up to the woman and in a very serious tone, asked her to leave.
Lady: (shocked gasp) What?! Why?
Manager: You were in here last week and you nearly damaged over $300 worth of merchandise and nearly injured my employee severely. I don't tolerate that sort of thing in my store.
Lady: How would I have done any of that? I don't understand!
Manager: I have you on tape dropping a bag full of merchandise, which would have hit the floor or possibly fractured my employee's feet, but luckily she caught it beforehand.
Lady: So then why am I being banned?
Manager: Because it could have ended very badly had my employee NOT caught the bag. You simply let go of the straps and rushed out. Why would you do that?!
Lady: I just don't understand why I'm being banned!! I did nothing wrong!
The woman continued to insist that she did nothing wrong and refused to respond to my manager's question as to why she simply let go of the bag full of fragile merchandise. She only left when the manager called security and had her escorted out. The woman was banned for one year, but I moved on to a new job a few months later, so I have no idea if she ever went back to the store before that.