Help!

Dakota is very smart. He picks up new commands almost instantanously. But lately, when given a command, he will just stand and stare like, "I don't want to do that right now." :evil: I do watch the Dog Whisperer and try to follow his advice. But I am sure that Dakota does not have enough boundries and limitations. He has the full run of the house and the furniture. He even tells us on Saturday morning when we are getting up! :shock: How does one change that? I've grabbed his collar, looked him in the eye and have given him a firm "no" or negative word (in class we use eh! eh!) with no apparent result. It's been hot lately so he hasen't been walking but we give him a good work out in the pool every night. Another problem I have (even though I dragged my husband with me to both sessions of Dakota's training) is there is no consistancy in our house. My husband and his son (who doesn't live there but is there everyday) are back with the old school style of slapping at and yelling at the dog--even though Dakota's instructor clearly warned against that. And our commands are inconsistant. Last night I caught my husband giving the had signal for stay and using the word stop. When I corrected him, he said, "Dakota knows exactly what I mean." What to do?? :? I know this is much more of a people problem than a dog problem because Dakota is very smart. Although maybe some of it is his teenage years?? Advice?
Diane (and Dakota)