The cool person is willing to do what everyone secretly wants to do, but they either lack the perception to know that doing so is O.K. or lack the courage to transgress social boundaries even when nobody is around who will enforce them.
Cletus Kasady, as he first appears in Spider-Man comic books. He is in front of prison bars and has bright red hair. The frame is a close-up of his face. Cletus gleefully, psychotically stares at a prison shiv he made. His speech bubble says “Forget about that Venom spook. All ya need is will!”