#1 Use Discipline, Not Cruelty
There is nothing a puppy can do wrong that warrants cruelty. Always remember that he just wants to please you and is trying his best. If you consistently stop the puppy in the middle of the act of wrong-doing and sternly say “NO,” the point should be made. Or you can try the ignoring theory. To a puppy, even negative attention is attention, so by simply ignoring the puppy, you are showing him that he is behaving unacceptably and won’t get attention from you.