Do you own a horse trailer? If not, do you sometimes use another person's horse trailer to transport your animals to the vet, to riding arenas, or to shows? If so, you will want to be sure the trailer is in top-notch condition before loading your horses or ponies for a trip. Although you may have to make discreet inquiries about a trailer that doesn't belong to you, it is still important to find out whether the trailer can safely accommodate your animals, and if not, planning ahead for choosing another means of conveyance.