Tired crews maybe. Situations developing in the cabin. Intercrew conflict.....all builds up. Can people start to see why I was fairly positive in the United MIA recent en-route landing about the benefits of ending such a situation by landing early? I said it in that thread and here too- at 500mph, you must defuse such conflict. You cannot afford to have ongoing situations in the air, or seriously upsetting and playing on the pilot's mind. You never know when he may be called upon to deliver 110% to save all onboard, and at a moments notice. If that sounds melodramatic (as some implied), who would have thought a pilot taking an A320 into the air from laGuardia would so dramatically be required to dredge every bit of his piloting experience, and so overwhelmingly rapidly? These situations MUST not be allowed to develop in the air. Unfortunately they do, and sometimes it seems with the connivance of the airline, or just blank total indifference to such atmospheres. BA is no stranger to this!