Fan Casting Get a Hold of Yourself, Man! in Sort by Tropes

The hero has just gone off the deep end under stress. Proving himself to be Not So Above It All, he grows increasingly hysterical, mean, unresponsive or (w)angsty, at a time when his team needs his unaffected ability the most. How do you fix him? With human-centered Percussive Maintenance, of course! His Sidekick, Distaff Counterpart, right-hand man or woman, love interest (especially the ladies of the Tsundere or Broken Bird kind) or superior jolts him back to his senses with a sharp slap, a straight-up punch to the face, a shake to both shoulders or an Angry Collar Grab, and occasionally a retort for him to get his head out of his ass already (see entry title for the archetypal one).