My dog seems to be developing a sock habit. Lately I've been finding chewed socks in the living room, and just now I caught him with three of my dirty socks. What is this all about? Is there some vitamin deficiency that might account for this? I dunno, the boy has enough neurotic habits already - he has to spin around like a top before he can take a dump, for example. (No offense to anyone reading this who might have the same ritual.) I don't think he should be eating my socks.