There was a large family living in a house. The father was always trying to find different ways to save time. One thing he came up with to save time was to fasten his waist coat from the bottom up rather than top down as this would reduce the number of times you would miss button the waist coat. Father went out to work one day and killed/died. I can’t remember if there was a train involved in his death.
Cheaper by the Dozen (1950) – http://www.imdb.com/title/tt0042327/