Multiple Questions

Question
I've browsed your previous answers in order to try and avoid asking so many questions, but alas, here I am.

I've had my 8 week old Golden boy for 1 week.

1. He does rather well in the potty training department when he's in his crate or room (he has his own room).  But the moment he steps foot into our kitchen or dining room (tiled and hard wood respectively) he'll pee.  Of course, the occasional carpet he can find himself on, he'll help himself to as well.  (The kitchen/dining room area is between his crate/room and the door he is accustomed to going out of on the way to the potty area.)
The issue here is not so much that he needs to go outside to potty, because more often than not, he will have just returned moments later from being outside and relieving himself.  I'm worried that because this is happening more and more frequently, that he's somehow training himself to go in the house.  We always keep a close watch on him, but he pees without notice!  I've read several books and websites, but none address this specific issue. We're very good about making sure he's regularly walked outside (10 times a day or so?) plus 3 wakings at night to walk.

2. Sometimes when we're playing tug, or petting him, or just giving him attention in general, he'll start acting funny.  "Crazy" is the only word I can use to describe what he does.  He'll just get really crazy, aggressive and hyper and plays REAL HARD, (eyes will kind of roll back in his head) no matter how calm we are.  (This will only happen "sometimes" and only after we've been playing with him for over 5 minutes.)
When this happens, should we simply put him in his room or crate and ignore him until he's calm again?

3. He's a typical pup, so he likes to bite and chew.  Of course, we're working with this, but there are some things that are just unacceptable.  He'll chew/pull on clothes and we can't get him to let go to replace it with a toy.  Also (and this one really bugs my wife), he likes to chew/nip at women's crotches.

4. He's a good boy, doesn't bark too often.  He only barks when appropriate (when we're playing, or if he's running down the hall toward you) but I'm worried that it'll develop into a habit.  -Do I need to worry?

Sorry for asking so much, but I really appreciate your help!  We want to do everything we can to raise a good dog.  Thanks so much!

Answer
A Golden doesn't need or want a room of his own.  He wants to be with you.  Keep him in the dinning room or kitchen with you.  Watch him carefully.  Likely your hardwood floor doesn't have the industrial grade urethane protecting it  ours has, but prompt sponging up accidents should prevent damage.  As those room become ''his'', he should stop urinating in them.  

For the biting and other problem behaviors, one of the most effective things is to yelp, and then walk away.  Remember, he spent most of his life with his mother and litter, and dogs naturally want to be part of a pack.  Being left alone is the worst thing he can think of.  If anything, it should be even more effective on an attention sink Golden.  

Goldens usually aren't problem barkers.  Dogs are individuals.  Perhaps that is why you aren't finding help elsewhere.  We are feeling our way with our 8 week old yellow Lab.  She whines more than the other 14 Lab puppies we have had.  Just be careful not to reward him for barking with attention or other positive consequences.