Okay, I've heard enough to understand and offer an explanation, which some foolishly claim to be at least misguided. I've lost so many things before I started studying the process in detail and eventually discovered that...hold on to your hat, DROPPED/LOST ITEMS OFTEN CANNOT BE FOUND BECAUSE THEY
DE-.MATERIALIZE! Most recently I dropped a ss vent liner I was working on and saw exactly where it landed and heard it as well. It is gone and will not be found unless it decides to
re-materialize, and it could re-materialize almost anywhere not even remotely associated with my shop.
Most dropped things disappear into another dimension and many never reappear. So if you lose an item in your shop look in the fridge, microwave, on the roof, bedroom, etc. I've had things re-materialize in the exact spot they occupied just before they hit the floor and skidded into the ether.
So losing things is not necessarily your own fault, but rather often the fault of perversity.