I served nine years in the Army, and saw live fire on three continents. I've seen good friends killed, been pulled under rip currents with heavy gear and slogged through leech infested jungle for weeks.
On my first overseas assignment, I was a couple hundred yards away from the Marine barracks in Beirut in '83, when it detonated. Unspeakable carnage. 8 days in-country. A baptism of blood.
Afraid? Nothing scares me anymore.