I have lost several cartridges among many other things. One right off a shelf; no , no one else took it unless it was the little people. I can't find some parts I ordered for a tone arm right now; the anti skate outrigger for my Grace 707 has been missing for a couple of years. I have a box of parts for my SME arms that is here somewhere [maybe]. I haven't seen my good multimeter in a few years either. All told, you aren't doing badly.