I don't teach or recommend so-called "purely positive" methods that allow misbehaving pups to continue misbehaving, instead of teaching them which behaviors are and are not allowed. "Purely positive" is fine for teaching tricks and high-level competition exercises, but NOT for teaching the solid good behaviors that all family dogs need to know, and NOT for stopping behavior problems such as barking, jumping, chewing, nipping, chasing, etc.
Submissive urination is a normal way for your puppy to demonstrate submissive behavior. Even a dog that is otherwise housetrained may leave dribbles and puddles of urine at your feet when greeting you. Excitement urination with a puppy is usually caused by lack of bladder control. The puppy is not aware that he is urinating; he's just excited and any punishment will only confuse him. What Equipment Do You Need To Train A Dog ?
When you're playing with toys it's the same thing: his teeth mustn't ever touch your hand. If they do you say "Ouch!", kind of the same way his little mates would, and turn away from him. So if you feel his teeth on your hand at all you let him know with a little "Ouh!", turn away and let the game stops for a few seconds. Make sure to speak up every time he bites too hard so that your puppy can learn your threshold for what is acceptable and what isn't. Then go back and play again but he has to remember not to use his teeth and to be more careful next time.
Think Like a Dog: How Dogs Teach Us to Be Happy in Life and ...books.google.co.uk › booksbooks.google.co.uk › books