A new way to use a sock!

As Archie carries socks around ALL the time, I thought: hmmm maybe he's trying to tell us something! So, I got the sock and put it over his nose and told him it was a nose warmer! He wasn't best pleased, wanted to take it off but eventually, with a bit of help, I managed to tempt him with a biscuit! If it's not a nose warmer he wants it for, what WOULD he want it for?!
Hmmm, Arch is a mystery! :-)