Was he not a solid example of how an ESFP can go wrong? If you haven't seen Grizzly Man and have no interest in nature or wildlife, it is also an up-close look at an ESFP spiralling out of control into a paranoid frenzy.
[YOUTUBE="http://www.youtube.com/watch?v=OlqSiP2WIuU"]"Timothy Treadwell" Rant[/YOUTUBE]
That said, there were some humorous moments in the film when he inspires a proper chuckle and a tender tear.
Any alternate type guesses?