Training Tips : Managing and controlling puppy biting problems can be a major challenge for dog lovers. Puppy biting or nipping starts out as a bit of fun, but needs to be controlled quickly. Some of the tested methods are; 1. Spray your puppy with water every time he starts nipping. 2.Fill up an empty can with rocks or coins. Each time your puppy starts biting, say NO and give the can a shake. Apparently puppies hate this rattling noise.