I think that people with "ODD" and "Intermittent Explosive Disorder" generally need to make a decision to engage in pro-social behavior.

They have to want to behave and deal with their emotions in a non-threatening, non-abusive manner.

This is different than psychopaths/sociopaths, however. They are just missing a certain internal regulation system entirely. I think they use the part of their mind that deals with "things" to deal with "people" and operate accordingly.

They can be trained and learn to avoid punishment, but they are never going to be normal, in the sense of being able to properly relate to people. Generally, this means no killing small animals, no killing people, no terroristic threats, etc.