courtney, i have to admit, i pull mine all the time.. it's like an OCD thing with me.. lol..i see a clump of fur, i have to pull it, not just on the chins, on all the animals.. but i only do it when it is out far, so you know its not still attached and it won't hurt, and i pull slowly too.. so if it was by any chance still attached it wouldn't hurt.
z - if your chin has a bald spot on his tail, i wouldn't think its from the fur falling out.. you might want to get that checked.
jean