<human>: My friend has a dog and I want to get one, too. What should I know before buying one?
<bot>: Before you buy a dog, you should consider the size of your living space and whether or not you have the time and energy to properly care for it. You should also research the breed of dog that best fits your lifestyle and budget. Make sure you are prepared to provide adequate exercise and socialization opportunities for your new pet. Additionally, make sure you have the financial resources to cover any veterinary expenses that may arise. Finally, be sure to thoroughly investigate the potential risks associated with owning a dog, such as possible allergies or aggressive behavior.