Just so everyone is aware of the level of absurdity we're dealing with... there are labor laws for horses in Pennsylvania...

(f) Hours of labor of animals.--A person commits a summary offense if he leads, drives, rides or works or causes or permits any other person to lead, drive, ride or work any horse, mare, mule, ox, or any other animal, whether belonging to himself or in his possession or control, for more than 15 hours in any 24 hour period, or more than 90 hours in any one week.