When you’re puppy training and your puppy will live outside, it is essential that you fence the yard, or use a very good wireless fence and receiver on the puppy’s collar. Allowing your puppy to run loose, even in the country, places your puppy and other people in danger.
A fence to keep your puppy in your yard protects your puppy not only against running loose, but against other dogs that run loose and might enter your yard and attack your puppy without a fence. This is a good argument for a wood or wire fence rather than a wireless fence. Many people feel they can’t afford a fence, or don’t have the right type of yard to fence their dog in.
If you absolutely cannot fence your puppy, consider a “trolley runner” fastened between two posts or trees, rather than a chain. Chaining a puppy to a single, central post is rarely a good idea for more than a short time. Chaining a puppy can turn a good puppy into a problem dog. Chained dogs are more likely to bite, and more likely to run off and refuse to come when called.
Dogs naturally resist and hate being chained. Dogs instinctively run and have freedom, and chaining them goes against what they instinctively want to do. They feel trapped, because they are trapped, and they not only don’t like it, but actually get stir-crazy, just like a person would. Even a puppy with a good temperament will be a little less happy and carefree when chained.