Should you rub your dogs nose in there pee if they go inside the house?

No. It is a common mis conception that this will train your dog. Dogs can smell the urine but they wont be able to see it so this will not offer a very good training technique. If you are in the room when your pet pees or takes a dump you should say "no" then run them outside to show them the correct way to do it. Eventually they'll get the idea, though for some dogs it takes longer for them to catch on. Good luck!