I have had the same creepy phenomenon occur every week for the last two and half decades. It does not matter if I'm in my own home or at my parent's house, or even at a business. It seems no matter how careful I am, they still disappear. New, old, it doesn't matter, at some point they will vanish, leaving a lonely partner behind. They go in together, I am sure of it, I double check but at some point in the transfer there are lost or perhaps the dark insides of the machine has some sort of portal device caused by friction and heat. Either way, they're gone without a trace, never to be seen again. tl;dr I'm sick of losing my socks in the wash.