My wife recently gave me a Labrador retriever puppy we named “Max.” One day when Max was spending time with me in my study, I was concentrating at my desk and heard the sound of paper ripping behind me. I turned to find a guilty-looking puppy with a book wide open and a page dangling from his mouth.

Our veterinarian tells us that Max is going through his “chewing years.” As puppies lose their milk teeth and permanent ones grow, they soothe their gums by chewing almost anything. We have to watch Max carefully to ensure he isn’t gnawing on something…