Sometimes, some of us produce a bit too much angst/aggression for a given situation. If we can't think of any acceptable solutions to the situational problem, the angst only builds. Then, a common coping mechanism is to take it out on ourselves, by self-loathing, cutting, overeating, or other forms of self harm. This clip from the show Bondi Vet tells the story of an angsty parrot (spoiler alert!) with trichotillomanic behavior and perhaps some Oedipal issues. The handsome doctor with an accent prescribes Mr. Parrot good old Prozac. Of course, a pill is not the sole treatment in most situations, but it's a necessary facilitator.