I have a lot of reasons why I wear a collar, originally I just wore one simply because I liked wearing them, and because they gave me a comforting feeling. Then it gained the title of protective device, as I don't like people touching my neck and have actually punched people in the face out of reflex because of it, so it's also a slight shield against random poking which would end up in me most likely breaking there fingers ... and yeah, moral of the story, don't sneak up on me and poke my neck... Later down the road it gained the meaning of "Hey I'm a Furry" as I joined the officially joined the fandom. Aside from that, it's an inside joke, as well as there are just a lot of memories involving me, my collar, and friends.