2 adjectives to describe misbehavior

You cannot fall, and if your horse should show any signs of actual misbehavior, you would find your master at your right hand, with fingers of steel to grasp your reins, and a voice accustomed to command obedience from quadrupeds, howsoever little of it he may be able to obtain at first from well-meaning bipeds.

He might exercise his power over her person by restraining her of her liberty in case of gross misbehavior, or by giving her moderate chastisement in the same degree that he might administer correction to his children.

2 adjectives to describe  misbehavior