Because if you FAIL to stop these problems early on in your dog's development, you may have a H U G E problem down the rode.
How Do You Stop A Puppy From Biting?
The 3 simple steps are as follows:
1. Interrupt the behavior. Say "No" loudly, ring a bell, rattle chains, do whatever you can to distract the pup from biting and mouthing.
2. Substitute a favorite toy quickly. Have a favorite toy ready for the puppy to bite on. It should be one he plays with often and loves to bite and chew on.
3. Praise the dog with enthusiasm. Say "good dog" with feeling a few times.
Repeat steps 1 - 3. Repeat. Repeat. Not once. Not twice. But as many times as it takes to stop the puppy from biting you.
That's the simple 3-step process describing how to stop puppy biting. Do it over and over or you will end up with DOG bites. A puppy may not hurt. But a grown dog hurts.
You get the picture! Do it NOW.
Want more examples and details? See this lens: http://www.squidoo.com/puppy-training-problems