I can drop a washer/nut/bolt and hear it go plinking away....only to never be seen again. I lost a CB550 wrist pin clip that went into another dimension.
There may be a worm hole, too. Sometimes, hardware or tools go missing for...minutes, days, weeks, months...only to reappear later.
This black hole isn't contained to the garage, either. Once, I wanted to vacuum out my G10 van. I kept it parked on the edge of the driveway. I cranked it up, backed it up maybe 15 feet, pulled it in straight. Cleaned out Ol' Creepy and then.....Where the #$%* are my keys??!!
That was years ago and I still haven't found them. Yes, I checked the shop vac. That one cost me $125 for new keys, tumblers, ignition switch.
Anyone else have a Black Hole in their garage? You haven't seen a set of '86 Chevy keys, have you?