When I was younger, about 20 years ago, I used to listen to an audio book (possibly narrated by Eric Idle) about a little man (about borrowers size) who lived in a boy's cupboard, wears one of the boy's socks as clothing, eats Seville orange marmalade and drinks Yorkshire tea. The two have a strange companionship, then all of a sudden he disappears..
Not as creepy as it sounds, haha.
Please help me figure out what it was, I used to love it!