Nice
I like the story and the premise. Anyone who has a younger sibling or cousin who gets underfoot can appreciate this flash.
I would have liked it more if the drawing style was more fleshed out. I am not a fan of stick figures or overly simplistic drawing/animation.
8/10 for the effort and making me laugh.
But please don't bitch slap the little one. That's just cruel. Instead tell him that the cookies were made in China and have been recalled. Or some other mean and traumatizing thing.