I'm not sure why, but I often thought it wasn't very nice of him to do that either. Especially when Henchy was only just trying to help. I guess it boils down to some older folks don't like to be reminded they're old. My grandpa is like that, he'll speak, need help remembering or doing something, but will get upset at us if we try to help him with it. He's said often more than once he hates getting old, still wants to do what he use to do, but can't. So maybe The World's Oldest Fraggle is only taking his anger out on Henchy because Henchy makes him feel so old. /heh I actually felt pity for Henchy when he stole the Fraggle Horn to keep from getting hit with the walking stick all the time.