Have you been dreaming of getting a dog ever since you saw the reruns of the television classic Lassie as a kid? Or maybe you were fortunate enough to watch the original series. While your dog might not be able to save you week after week from a burning building, a runaway freight train, or the bottom of a well (and in the time it takes to finish a 30-minute episode, too), owning a dog can be a wonderful experience.

Here are 10 things you should know and consider before choosing your canine friend.

1. Dogs take up a lot of time and energy. Yes, they are rewarding. But if you live alone and work twenty hours a day, then perhaps a dog is not the best choice for you. Hey, there are always those super-cool robot dogs.

2. If you are not often at home, and you really want a dog, you probably should invest in a dog walker. You'd probably be wise to choose a dog breed that isn't especially needy, too. Check out PetMD's Breedopedia to select from a wide variety of breeds.

3. Any dog you get should be suitable to not only your lifestyle, but your surroundings. If you live in a shoebox apartment, then a large dog is not a good choice. You don’t want your dog to develop health issues, be bored, or destroy things. Large dogs really belong in big places with lots of outdoor space.

4. Consider which breeds are suitable for your region's climate, especially if you have a yard and want to keep it as an outside dog.

5. Puppies require the most work when it comes to house training. If you: (a) don’t want your things chewed up, or (b) don’t have the time or money to train the puppy, consider adopting an already housebroken, adult dog.