I think the craziest example I've ever seen was a few years ago, before an Arizona League game out at Papago Park. There's this father-son "team" that shows up for a lot of these events - the son is not a kid, but a guy in his twenties - and I watched while, between the two of them, they got Diamondbacks prospect Wagner Mateo to sign some outrageous number of cards, while I stood there waiting to get a ball signed.

A couple of years later, I'm at an independent league game, and I'm telling this story to a guy, and I'm a couple of sentences into it, and he says some number - like "Fifty-four". I said, "What's that?" and he says, "That's the number of cards we got him to sign." I hadn't recognized him, but this guy I'm telling the story to is one of the guys I'm telling it about. At least I dodged a bullet by not starting the story with, "Wait till you hear about these jerks!"