Hmm? And which connotations might those be? All I know is that when the heat stopped working and I was hugging Jun-kun for warmth, his roommate walked in and said to "Put a sock on the door next time." I didn't understand that strange custom, so I had Jun-kun explain, and he said that's a trick commoners use. It means "Do not disturb!" Or, it means "I have company over."

[He recites all this matter-of-factly.

... he's so close to getting it, but so far.]