Should be sober.
Should be industrious.
Should be careful.
Should be faithful to his charge.
Should keep his engine and its surroundings neat and clean.
Should keep his engine running smoothly without knocks or pounds.
Should learn to let “well enough” alone.
Should never attempt experiments unless he knows what he is about.
Should have a place for everything and keep everything in its place.
Should show by the quietness in running and appearance of the engine in his charge that it is properly cared for.