You can't forget, and you can't leave it until later. Playing, exercising, teaching, grooming, feeding and watering, and letting it relieve itself is an everyday thing. Some dogs need more of one thing, and less of another, but they all need you every single day. Your dog counts on you. Taking care of all the needs of a puppy is not all fun. Sometimes its boring. It can get old. Do you have trouble getting all your chores done without being reminded? If so, it might not yet be time for you to get a dog. Having a dog is a responsibility.