Oof. Y'all, I've lost two 1991 2-Chain Aviars by this kind of carelessness.
First one was sherbet orange, and I'd had since it was manufactured. Kept it from then until roughly 2018 - I can't remember exactly, as I've tried to block it out. But it was fall or winter, and I had stuck it under my armpit as we were all shaking hands at the end of the round - it just sliiiiipped on out, and I didn't even notice it was gone until a week later. Its loss caused many months of experimenting with different putters. I landed on Envys, and still carry several.
I told the story in here somewhere months ago: while warming up at the practice basket at Nevin (with a stack of Envys) back in 2020, me and a stranger got to talking about putters, as people tend to do when they're, you know, standing around a practice basket, and when he noticed my putters, I mentioned my journey after losing the OG 2-Chains. Long story short, his buddy showed up with a red one a little later, and I was able to purchase it from him. He had found the thing, and hated it, and had no trouble making $20 in this way. I've been using it as my main putter ever since.
Well, just last week, we were throwing on our usual Wednesday night party-round, and...I just left it somewhere. The bitch of it is that I can't even remember throwing the thing. We were playing dubs, and my partner and I kept parking our upshots. But somehow, I left it or dropped it...
So that's two very valuable (to me, as useful tools of the trade; and to many others as premium artifacts) frisbees I lost in the span of a few years. I'd be totally fine if they went into a lake or something, but to be so unaware and clueless makes me feel like a world-class idjit. Don't feel bad, OP. It happens to best and worst of us.