ya that I agree...actually few years ago,even during Conversation with a Loco Pilot,he agreed that LP's actually do nothing Job.With increased Mechanised Version coming into effect,their responsiblity is to just press the buttons & monitor the path sitting in a cool & calm atmosphere. Previously during Steam Engines,the job was not so easy,as they only had to scavenge the Coal into the boilers to keep the Engine Running.But yet,continuos exposure to such extreme Cold atmosphere can in turn damage ur health badly which may not be seen immediately,but comes into effect only after a certain age.Due to continuous exposure to Cold while serving his 37 years career in Railways,my father has developed serious issues with the Nervous System,as the Veins that run through his left Legs have stopped working properly.Drivers & Guards both are exposed to almost similar situations.