Teaching appropriate items to chew can save a life. Puppies will chew electrical cords, bottles of poison, plants, objects that can cause intestinal obstructions. They have to learn what is good and bad. The safest things are prevention. Keep poisons out of reach.
Many garden centers have lists of toxic plants.
It is never a good idea to let Puppy play with your hands or feet no matter how cute it seems. Never let a puppy do something once that you do not want him to repeat. It is far easier to prevent bad habits from developing that it is to retrain an older puppy or adult dog. Here are two techniques to teach puppy not bite. It may take a few days or so for puppy to catch on.