Executive Outcomes was a "private security" company which used B727s in Angola under the guise of Ibis Air to fly their employees around. Recruitment was mainly from former South African military personnel, though foreigners were also taken on. Captain Niel Steyl's training, experience and ability would certainly make him the right man for this kind of work, I would be quite happy to be sitting in the cabin with him upfront if I had to get somewhere in a war zone.
I think he would have enough sense not to pull a stunt like that in regular airline flying.