Recently I wrote about what I perceive to be a shopping club card scam. My local grocery store suddenly pulled a switcheroo on what kind of rewards they were giving to customers who use their club cards.

In the past, it was always a monetary discount, up to 20% off your total bill, depending on your point accumulation. The last time they ran the points redemption period, they gave my husband, Dave and me useless bakeware instead. I gave all three pieces to my sisters, by the way.

Today we got revenge.

Dave ran over to the store for some dinner items: hamburger, ice cream, and macaroni and cheese from the deli counter. When he got home, he announced "That lady at the deli must have the hots for me. She did it again."

What’s "it," you ask?

"It" is undercharging for a pound of macaroni and cheese. "Again" means it’s the second time the same lady did this to him. The first time it happened, we got a good chuckle out of it. Now we just think she’s smitten with him.

Dave didn’t realize this had happened again until he got to the register and self-scanned his items. When the macaroni and cheese rang up, the polite-sounding lady who lives inside the machine said in her best monotone voice, "Five cents."

Yeah, a nickel for a whole pound. See for yourself. Note: I’m blocking out the store name because Dave is actually afraid someone from the store might read my blog (????) and then fire the woman who is repeatedly weighing his stuff in this way.

I asked him what he did when the machine lady reported the surprising discount — loudly, I might add. Everybody in the store knows the cost of everything you’re buying because the audio is jacked up so high. Frankly, I can’t understand how the store employees can listen to the scanner voices all day without wanting to commit hara-kiri.

He said he looked around figuring some store employee would look up and say "Nothing costs a nickel! The machines are malfunctioning! Tech support in Aisle 2! Stat!"

But no one blinked and he wasn’t about to return it to the deli, as half his items had already merrily rolled down the conveyor belt. We’ve decided this makes us even for the club card scam. Karma works like that.

In case you’re thinking it’s immoral for him to not have corrected their mistake, he was punished, in a way.

When Dave started frying up the burgers, he realized he forgot to buy mayonnaise, a staple in his diet and an absolute requirement for cheeseburgers. He had a very unhappy meal tonight. Karma works like that.

Stumble it!