He just wagged his little nub.
For all I know, this was like a comedy routine for dogs.
:D
Bubby, my beloved [RIP] tried to master door knobs but due to the really deep doorway [log house] he could never get his jaws around it just right...so he crushed into a deformed, tooth mark pocked brass blob.
I will never change that door knob.
:)
priceless