A dog owner is responsible for their pet in public places, so if your dog misbehaves you can be responsible for the consequences. A poorly trained dog can also be a danger to himself. Imagine the consequences if your dog ignores you and runs across a busy road. In order to have a safe and well behaved dog you will need to start training when your dog is very young. The rewards of this are clear - there is perhaps no greater pleasure than owning a well-behaved, well-trained dog.