Chris, you are one intense dude, and this from one intense dudette!
I guess you have to have that intensity to make it HK films. Its a pretty insane biz with some extreme working conditions. When you've been working for 20 hours straight in hellish conditions, and the director wants to soldier on, and its 3 am and freezing cold in some desert with windblown sand and scorpions and no civilization for mile around, if you ain't that intense, you fold, throw in the towel and go back home. Then you're not Chris Doyle. (Oh, and he could do it after downing a bottle of scotch!)