My husband took this photo of his feet, then came to me and said "You should make a blog entry about how I only wear one sock. There's a picture on your camera." This just proves that he only does it to get attention.
I concede that there may be reasons to take off your socks randomly and leave them scattered throughout the house, under your compuer desk, in and around the couch, on the dining room table, in the kitchen. Maybe the elastic band was strangling your ankle, perhaps your feet suddenly became unbareably sweaty, perhaps you couldn't bare that giant hole any longer. But why take off one sock and not the other?
I can't stand it if my right foot feels different than my left. So I asked Adam how he could bare the single barefoot. Now that I've noticed he seems to think the quirk annoys me. So he now does it deliberately, rather than unconsciously. I have also caught William, and even Jadzia, sporting only one sock.