I had something weird come up recently.

Went into a gas station, bought an age restricted item. Was not ID’d. I end up having to replace my debit card multiple times per year sometimes because of fraudulent charges, etc. and can never keep track of my PIN. So I ask the cashier to process it as credit. He suddenly started asking for ID and wanted to record it. I’m guessing it was some sort of anti fraud measure but it was somewhat awkward.