"we feel aggressive, which is a form of fear, and purposely place ourselves in situations we shouldn't be"

http://www.straightblastgym.com/awareness_vs.htm

"Aggression is another state all together. The first thing I try to explain is that aggression when it is unwarranted is simply another manifestation of fear. We need to understand that aggression and fear are one and the same quality. Two ends of the same stick, or two halves of the same coin, if you will. They are not only the same, they are inseparable. When it's aggression that is manifesting itself in non-appropriate ways, such as the examples above of the "bar" fighter, or the concealed weapons holder who puts himself in dangerous situations, then it's actually the fear that is being manifested. So we need to address that issue, the big issue of martial arts as I see it, the issue of fear. "