Some contracts allow owners to be reimbursed by breeders for their vet bills should the dog become sick from something they’re supposed to be free from or test positive for something they were meant to be protected against. Depending on the breeder, there may be a time limit on this, so always read your contracts properly. Some breeders offer something similar to an item warranty contract, where owners of sick puppies can be refunded or receive a healthy replacement. This kind of contract should be avoided as it provides a loophole that could allow breeders to neglect true health checks and treats dogs disposably.