Joss Whedon on Crafts and Craftiness: Interview Transcript
JW: It's an age-old war. Like the werewolves and the vampires. I think Underworld was actually originally about crocheters and knitters but they thought it would be too controversial so they changed it to vampires and werewolves. Um, most of them are sadly knitted. However he does have one crocheted, but he did it himself, and it doesn't go very well.
JW: I did not. I did not. My whole thought was that Jayne was your classic bad-guy mercenary type, and I thought this is the one guy who does not have a tortured past, who has a decent, hard-working family, who just, you know, this was his career choice and the idea of him getting a letter from mom that he struggles to read, and the knitted hat, wasâ” it just felt so right. It felt very, very him and very human and then of course I saw the hat with its flaps and its pom pom, and I just couldn't have been happier.