About 11 years ago I lost a Leatherman PST that was given to me. I loved that tool. Carried and used it daily. We were flat broke and I didn't even dare think of just going out and replacing it. I was in the service, we had 2 small children and were on WIC (Yeah, serving your country and on assistance). I went to hardware store to get a new screen and left the tool on the roof and it fell off. I had the biggest temper tantrum. I look for hours. I yelled, I screamed and I couldn't find it. I was really bummed out.
The next patrol I called my wife from some foreign port and asked how the kids were doing. My wife said one of the boys lost something and was besides himself. I remember asking her what he was doing and she said, "Having a temper tantrum like you did when you lost your Leatherman, only not as bad">
I laughed and laughed when I heard that and to this day when I remember my wife's sweet voice saying that, I still laugh.
Sorry that you lost your knife. We have all been there. You're not stupid, just human.