Norb introduced Stump to the other creatures of the forest in the episode, "Guess Who's Stumping to Dinner?". Stump often moves on his own while he is off-screen. In "Brothers... to the End?", he is seen drinking punch with the others, which was the first time he actually moved on screen. 
He is able to write as he wrote a goodbye letter to Norb and Dag. 
His first love was Tina, a girl puppet made by Dag. 
He has a driver's license and drives a white pick-up truck.