<human>: What do I need to know before I buy a dog?
<bot>: Before buying a dog, you should consider the size and breed of your family, the amount of time you have to spend with the dog, the cost of food, veterinary care, and other supplies needed for your pet, as well as whether or not you are prepared to train the dog. You should also research any potential health problems that may be associated with the breed of dog you are considering. Additionally, it's important to make sure you understand the legal requirements related to owning a pet in your area.