Well, WE certainly noticed it. LOL
I can't think of anyone else off-hand, who bangs into things on the show more than he does. I can think of at least two instances where he's banged his head on the top of the kitchen doorway. Has anyone ever noticed how LOW that doorway is?? If he forgets to duck, that's it. I think Frid barely clears it.
Near the end of 1841 I remember Selby backing up and banging into an open door.
But you're right - what a pro, huh? LOL He keeps going no matter what. Yay!!