Yup. I've had cashiers ask if someone can use my card. It's not a big deal. Posters here would probably demand the manager and try to get the cashier fired because of it. There's such an odd holier than though attitude that people here get over the dumbest stuff. The superiority that oozes from some posts astonishes me. I think some people need to find a little more joy in their lives.
I was one of the ones that said I would be taken aback and be befuddled if somebody asked me.
That is because it just doesn't happen here. I have had my shopper's card for 20+ years and have never been asked by a customer or a clerk. We are not a touristy area that gets lots of non-residents shopping. And if somebody from out of town was visiting, they would just use their host's card. It would be highly unusual to have somebody ask.
That isn't a holier than thou attitude, just one of surprise and shock. And I would not be thinking quickly on my feet and my brain would be quickly trying to figure out if there were any ramifications.
But now that it has been discussed, I will be more informed that there really aren't any ramifications and probably let somebody use it if asked.
The only exception was if I didn't see what they purchased. Often there are limits on how many of the discounted items you can purchase. Somebody mentioned a turkey up thread. Our grocery store sells Thanksgiving turkeys at a loss leader, obviously hoping to get you to buy all your other Thanksgiving trimmings there. But, you are only allowed one turkey at the loss leader price.
So, if I allowed my card to be used for a turkey, I would not be able to purchase one myself.
Our store runs these loss leader sales almost every weekend. The regular sales flyer is for Wed - Tuesday, but there is always an additional sale with huge discounted items purchased on Sat and/or just Sunday. And there are always limits to these items. So, if the shopper had items I wanted, I would decline the use of my card and suggest they open their own.
I still think it highly presumptuous to ask rather than taking a minute to fill out your own form. You can opt out of the advertising. I never, ever get an e-mail, text or even snail mail mailings from my shopper's card. That is a stupid reason to not want one.