Small parts launching themselves into inaccessible areas is a burden I think most of us deal with. My shop is, unequivocally, a disaster of epic proportion. The only thing with more tiny, expensive, spring loaded pieces than a clock or gun is a vintage chainsaw. Tiny springs, made of unobtanium and never duplicated since 1974, have no qualms at all when it comes to launching themselves into a pile of metal swarf, dirt, dust, milkweed fluff and maybe some dead bugs, all located behind a pile of scrap metal, tools, electrical cords or perhaps into a 40 gallon trash can. I have magnets, bright lights, Opti-visors and knee pads on stand by just because I spend so much time trying to find these errant doo-hickies, thingamabobs and whatchacallits! I've tried putting down carpet remnants, towels, cardboard, plastic sheeting, even tried taking stuff apart while it all sat in a deep plastic tote. None of it is foolproof, and I'm the fool that proved it!!!!