Got to find a way to satisfy the cravings without being reliant on a demanding dealer.
Most of us who chose to enter the profession did so because, amongst other reasons, we are inherent thrill seekers. The employer, the authority and most importantly the customer want flights to be 'boring' no thrills and definitely no excitement. Thrills seekers don't find boring satisfying, the consequent inherent tension can express itself in all sorts of ways, 'burn out' may be one.