a weird story

I keep my dirty running socks in a mesh bag. It's easy to throw in the washer when I'm doing laundry and easier to sort the pairs after I take them out of the dryer. Something strange has been happening lately. For the third time I have found one stray pink sock that has somehow escaped from the bag and mixed in with the various towels and whatever happens to be in the laundry that day. The mesh bag is always zipped up, I'm OCD. I check it. This is an absolutely true story and I find it very puzzling. I'm going to try to find out why this is happening. Maybe I'll stuff them all into a smaller mesh bag and see if that makes a difference. I'm guessing it won't.