I tried to buy it but the guy still used it for a self defense tool, in fact he had it out in the open (handling it) during our meeting in his kitchen and did not reveal it to me until after he had already vetted me for about 30 or 40 minutes in conversation, he was a pretty cagey old guy.
It was very similar to this with the cartridge and barrel inside the knife, even after knowing you couldn't tell unless you looked directly at the tiny barrel opening.
I don’t know. “Tiny barrel opening” and “self defense tool” don’t normally show up together in Still Thinking’s doctrine.