Well, I've got one that wasn't actually a show in the true sense, but is pretty close.
I attended my first Hammer-In at the school at Old Washington, Arkansas in 1996. I had been making knives since 1993, but by stock removal rather than forging. I really didn't know anything about the ABS other than what the letters stood for.
On Sunday mornings there is a show-and-tell period sometimes called a BYOB for "Bring Your Own Bowie" or "Bring Your Own Blade". Back then the BYOB was done in the banquet room of the Best Western Motel in Hope, Arkansas. While it's not a really a show, collectors and dealers do show up and buy blades.
At this particular gathering there were probably a hundred blades or more on display. As I walked around the room I noticed that clearly 75% or more of the knives were turned reverse side up and were stamped 'MS'. These were some of the most beautiful knives I'd ever seen, and there were so many varying styles.
As I made my way around to the last of the knives, I was asked by someone (I wish I could remember who it was), "Well, what do you think"? I responded, "Boy, I don't know who this 'MS' guy is, but he sure does good work, and makes a lot of knives"!
Of course, someone pulled me over to the side and whispered that the 'MS' stamp meant that the maker was a Master Smith, and that the maker's mark was on the other side.
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Here's another that was not me embarrassing myself.
A couple of years ago, I was at the Little Rock, Arkansas show. I was sitting at Jerry Fisk's table and shooting the breeze.
When lunch time rolled around, Jerry asked me if I'd watch his table, and let him go grab a sandwich. I watched the table and occasionally answered questions for potential Fisk Knives customers.
At one point a fellow came by the table and was intently studying Jerry's knives. When he saw the name on one of the knives, he got a big smile on his face, reached out to shake my hand, and said, "I can't tell you what an honor it is to meet you".
It was obvious that he thought I was Fisk. I shook his hand and I've got to tell you, the devil was really trying to get me play this one out. But I remembered my own infamous 'MS' statement from years ago, and how the ABS boy's did not reel me in and make me feel like a fool.
So I quietly explained the situation and told him to be sure and come back by the table later. I know it embarrassed the fellow anyway. He moved on pretty quickly, and I don't remember seeing him again. I do hope that he did get to meet Jerry before the show was over.