My dog is eating them! Literally!! I can't keep socks for my daughter because she takes them off wherever she happens to be and the dog gobbles them up. She'll steal them from my daughter's hamper if I'm not looking, too.
She also eats my socks and my husband's socks. I just the other morning cleaned out two vomited socks from her crate.
(And yes, I know how dangerous it is for her to ingest that kind of thing. I do my best to keep them from her - picking them up, buring them under clothes in the hamper, etc. Not perfect, though. We've been lucky, however, and never had a problem. She throws them up or we have (possible TMI) to pull them out the other end after they get stuck...)