Amazing how McCain et al survived years of things worse and yet somehow managed to maintained (for the most part) the military’s code of conduct.
He did not maintain it nearly to the extent you might think. I have a good friend here in town, Bill Hardman, who was an A-6 Bombadier. He was shot down over Vietnam in 1968 and spent several years in the Hanoi Hilton with McCain. According to Bill he was a weasel of Biblical proportions and was generally shunned by most of the Americans in that camp. He was good friends with several of the guards, however. I will leave the rest to your imagination.