Puppies will not go to the bathroom where they sleep. Crate training puppies is a great idea if you work. If you do not keep a puppy in a crate when you are not at home, he will find a place to go to the bathroom. If you keep him in a crate, he will hold it until you get home. Crates are also good for ensuring that your puppy does not chew things while you are gone. You won’t come home to find your favorite pair of shoes or the cord for the television ruined.