Half a life time ago I was a cash-strapped college student with a penchant for growing herbs in pots. So when the local gardening supply store ran an ad stating all planters were 50% off I couldn’t resist. After much deliberation I chose two of the fancy flowerpots instead of a dozen of the plain ones—being sensible was never my strong point.
The cashier rang up my pots at full price. I pointed out her mistake. She informed me these planters were not on sale. I drew here attention to the ad, stating all planters were half off. She gave me a professional smile and said, “Yes, but not these ones.” I pointed out to here that all meant all.
I became the dreaded customer who holds up the line. It wasn’t the planters—those I could’ve walked away from—but the principle of things.
The cashier summoned the manager, and I stated my case. He instructed the cashier to charge me half price for the planters. However, I strongly suspected—and still do—that he did it only to get rid of me, not because he saw my point.