This is an example of a parent not being able to realize that his son is lying.
It’s so obvious that when Tigger was turning, the kid was holding onto him in some way.
Pulling his tail ?
What other plausible reason is there for Tigger smacking the kid ?
You’ll even notice that his first move is to remove the kids arm from his back. Doesn’t that say enough ? Disney needs to back Tigger up.