The guy who would not take no for an answer.
Two or so weekends ago, one of my very first customers of the day stopped me near the key machine and held up a masterlock padlock. (This gets me overjoyed because it means if I do have to make a key of it, I can test it out immediately.) But he asks some unusual questions like 'If I give you this key, can you make it work in this lock?" That's the summatorial version of it, anyway.
It's not even a matter of suspicion at this point, though it wasn't not a factor. The simple fact is, we can't do that here.
But he doesn't believe me. He says that we should sell a little tool that lets us slam it with the key in it and turn it to rekey it. He absolutely insists upon it.
I tell him that we don't do that, and never have. He continues to insist on it. I just shake my head and walk away. No sense on wasting any time with this.
About ten minutes later, after the rest of my co-workers have entered the building and clocked in, (This was all within 15 minutes of opening.) I find out through idle casual gossip that they also got this customer.
... and another co-worker did as well.
This guy asked every single one of us this same question. I was asked over our private communication line this question twice within two minutes.
This dude was tenacious. o_o
SC: "Are you new or something?"
Me: "Yes. Your planet is very backwards I hope you realize."