behavior of shi tzu puppy

Question
i have a 3 month old shi tzu puppy, i got him at 9 weeks of age. hes extreml;y bitey, and i know its teething but when i resist he thinks its a game,  ive tried the method where you yelp loudly when they bite, but he just likes it and gets more and more aggressive if i do it, like its a game. he barks too all the time. ive tried giving him toys to chew but he likes biting people more :S he bites really hard and im getting cuts everywhere, if i put him down off the bed or couch or wwherever iam, he barks untill i let him up, and then bites me. or if i yell at him or push him away, he just gets worse. i even tried pinching him when he does it, biting his ear. pinning him down, and pushing his cheek into his mouth so he bites himself. its getting really bad, any advice wouild help. p.s. my las dog was the same breed and i had NO problems with him.

Answer
This is quite a dominant and hyper excited little dog.  You need to institute positive reinforcement training NOW.  Read Patricia McConnell Ph.D. on problem behaviors and positive training, her books are available on Amazon.  In terms of this play biting behavior, you need to begin to use an aversive, NOT hold him down, bite him back, pinch his ear (which is only going to provoke fear aggression.)  You want a sound device which will get his attention.  But ONLY use this device AFTER the puppy has LEARNED ONE COMMAND, "sit" being the simplest.  It takes approximately 30 to 50 trials to get a 100% reliable conditioned response to a command and a puppy this young must be worked with quite slowly (short intervals throughout the day), especially given the fact that he most likely has a very short attention span (given your description of his behavior.)  Once you have a STRONG conditioned response, if the pup begins to be mouthy, use your sound device (pinched soda can with about ten pennies, shake hard, yell at the can not the dog, toss the can across the room so it makes a large clatter when it lands.  NOW, if the puppy has stopped his behavior because of the response you have given,  ask him to "sit" and, when he does, heavily praise and food reward.  If he has NOT responded and becomes overexcited again, turn your back to him over and over again until he has stopped trying to get your attention.  He WILL give up (even if you have to turn your back to him 20 times) and then you can ask him to sit and reward him.  In other words, he needs a behavior that will work for both of you (something he does not have right now) and he needs to learn some self calming mechanisms (which he will by not getting your attention at all until he calms down, intervals should dramatically shorten.)  You also need to find a puppy kindergarten in your area where your puppy can learn from others his age and size (BE CAREFUL to avoid make believe trainers who throw all ages in together).  Just avoid choker collars or punishment with this dog, they will produce a monster.  Stick to positive reinforcement training.