I just did some quick reading on that second fear stage (thanks Val). I'm thinking that's not the problem. I haven't seen a fear response from him (I don't think what I'm seeing is a fear response, but I could be wrong), he's a pretty daring little guy.
Proud Mom to Eli and Kodiak
and never to be forgotten, Shiloh and Shoshi
Every dog deserves to have a human that thinks its the greatest dog that ever lived!