Most outfits turn their saddle horses out when they are not being used. Horses rest better and stay in better condition if they can run free and easy, away from man. They keep active rustling for their own feed and water. Their feet do not grow long and soft. They do not grow unhealthily fat. They get over being petty and ill-tempered from having to depend on man for their sustenance. They rest and get over a peevishness caused by too many long hard-working hours close to man. They enjoy a vacation in the elements natural to their own society.
Al ojo del amo engorda el caballo–Under the watchful eye of his master the horse will prosper.
Caballo encarrerado, sepultura abierta–A runaway horse opens a grave.