My father's father worked all his life for the railroad, and was a single parent, and my father grew up all around trains.  It was his passion and multiple times a year he would take off just to ride around the country on trains.  I remember going to the train station one day to pick him up and did not see him departing from any of the cars.  Then I looked to the front and he was climbing down from the engine/locomotive.

He was riding across canada on such a trip when they noticed he had not shown up for breakfast. A conductor discovered him dead in his cabin, having died of a heart attack overnight.  If only we all could be so lucky to leave this world that way.