The stick...sounds like he was going for the stick and not the kid.
The screaming kid...not sure that he did act inappropriately given the situation.
However, YOU need to take charge and not let him. Up your obedience. Up your recall and leave it. Up your guard in public.
It's MICHELLE, scarfish! My name is MICHELLE! Jax is my DOG!
~The strength of one's opinion should not exceed their knowledge on the matter~