As I've said before, it's like the soldier in a foxhole sleepily crawling out to take a whizz....wandering around to find a tree, he accidentially sets off a tripwire and the enemy starts shooting at him. A combination of utter terror, experience, and training in him kicks in and he starts charging the enemy machine gun nest....you don't criticize him for screwing up, or shoot him in the back. You lay covering fire and hope he can kill the enemy.