socks must be separated

[pylduck]

Most people experience the mystery of the disappearing sock when they wash and dry them. (For an explanation of where the sock goes, see Beaver and Steve.) I have another experience with socks that also contributes to the understanding that pairs of socks seek always to be separated. Whenever I fall asleep with my socks on, I wake up with only one sock on. It is the most curious thing. I don't know how the sock gets off my foot. And I don't know why both socks don't flee my feet. It's only just one (and possibly always just the left sock though I haven't kept track). Does this happen to anyone else?