The Crate Should Not Be Used for Punishment
You want your dog to feel comfortable in his or her crate. Your Shih Tzu will not feel comfortable if the crate is turned into a place of punishment, somewhere where he or she does not feel safe. The crate should be used for house training your puppy, a place to sleep overnight (while training), or even for use while you’re outside of the home. You should not banish your pet to the crate if there is an accident or in the house, your dog has destroyed something, or for any other punishment. Doing so will make your dog resent the crate, making crate training and housetraining much more difficult than it should be.
