1. Soldier insists on being addressed by nicknames such as "Psycho," "Slayer," "Death Puppy," or "Hannibal."
2. Soldier's locker decorated with photos of Adolf Hitler, Dr. Joseph Mengele, Jeffrey Dahmer, John Wayne Gacy, O.J. Simpson, or G. Gordon Liddy.
3. Presence of otherwise unexplained dead or mutilated small animals in the workplace.
4. Soldier performs compulsive, ritualistic cleaning of weapons while engaged in animated conversations with imaginary companions.
5. Soldier plays wargames.