He may know the identity of Vin's Parents (The Truth The Whole Truth)
He is facinated by butterfly's (The Butterfly Effect, Donkey Tales)
He is afraid of being dumb, this spans from someone called Sauncy Dunbell (Pinkertomb)
He actually expelled McBeth once but had her back at Pinkerton within the episode (The Ghost of Pinkerton)
He once teamed up with Vin and Zero to save Pinkerton (What's Up Doc?)
He is virtually never around to see how Evil McBeth is... How unfortunate.
His belief factor of the unexplainable is bad, but his response isn't too bad either.