[darren2000]

"12. Establish dominance by staring at people, never blinking."

"14. Humiliate people in public."

Sounds like a personality disorder, possibly anti-social personality disorder. See: http://www.wikihow.com/Spot-a-Sociopath, in particular:

"9. See if the person makes uninterrupted eye contact. Sociopaths are known for giving intense uninterrupted eye contact. The person stares because he or she is completely comfortable staring at people to make them uncomfortable. Staring at others intently is a way to further his or her own means."

"1. Look for a lack of shame. Most sociopaths can commit vile actions and not feel the least bit of remorse. Such actions may include physical abuse or public humiliation of others."