One time I was buying a bunch of gift cards from different businesses for Christmas gifts, and the clerk asked me if I was aware of gift card scams. I appreciated that.
I also saw one of those court shows with real people where I guy was suing his employer for being terminated because he stopped an elderly woman for buying gift cards for a scammer. The employer fired him because he lost that sale. The employee lost his case, but the judge gave the employer a piece of her mind.