Hi mfloyd1,
I never make mistakes ;) and haven't experienced exactly what you are describing, but have had my share of mishaps. I did lose a cap jewel this past weekend. Somehow, between removing it from the plastic storage tray, slipping it into the mesh container and placing it into the ultrasonic, it disappeared. I am pretty sure a chemical reaction occurred which caused the jewel to morph into a possessed particle capable of integrating itself into the concrete floor rather nicely. Of course, I am not an expert, so this is purely speculation.
Seriously though, when things go bad, and they will (I won't mention the pallet fork that ended up in my underwear here), I have learned it's best to just laugh it off and learn from the experience. You will most likely find that you won't make the same mistake twice. The alternative is to get frustrated and allow that vein in your forehead to protrude, coupled with gnashing of teeth. Not my idea of fun. This is a hobby for me and I want to enjoy the journey.
I hope this helps!
Roger