People who are claustrophobic tend to show some level of aggressiveness. Claustrophobia which is an anxiety disorder usually creates an irrational and intense fear of enclosed spaces. Anxiety is a state of mental uneasiness or nervousness mostly as a result of fear, this means anxiety is directly associated with fear. What phobia does to people is to make them so nervous any time they are confronted with things that trigger their fears.
For example, if a person who is claustrophobic by a kind of arrangement finds himself in an enclosed place e.g a room that has been locked up, and begins to develop this irrational fear. You will see that, he would want to force the door open by all means as a result of his aggressiveness. Most claustrophobic people always feel an intense urge to lose control. Anxiety disorder can lead or force someone to be aggressive.