Rottweiller Behavior

Question
My grown son is about to return home to live.  He has a 2 year old fiercely that is not very well behaved - he has torn holes in my son's couch, can't walk on a leash without tugging and tries to chase cars.  In addition, the only time he was here was a year ago so we don't 'know' one another.  Finally I have 2 mixed breed dogs myself.  One is a 12 year old female, about 40 pounds, and and a 9 year old male, about 60 pounds.  Both my dogs are shy around people, but not aggressive.  They, however, bark horribly at other dogs!  The entire time any other dog visits, my male dog's hair on the back of his neck stand up & he goes into attack mode.  He's never hurt any other dog, because I can keep him with me.  My question is, how do I help these dogs co-exist?  My son will be here for at least a year and I want the dogs to be able to live together - my home isn't large enough for them to all be in separate zones.  Any advice you could give would be greatly appreciated.

Answer
The key to most behavior problems is approaching things using the dog's natural instincts.  Dogs see all the people and dogs in the household as a pack with each having their own rank in the pack and a top dog.  Life is much easier if the 2 legged pack members outrank the 4 legged ones.  You can learn to play the role of top dog by reading some books or going to a good obedience class. A good obedience class or book is about you being top dog, not about rewarding standard commands with a treat. Start at http://www.dogsbestfriend.com/  For more on being top dog, see http://www.dogbreedinfo.com./topdogrules.htm

All of the dogs are going to have to respect all of the people, and submit to them.  This will go much better if the dogs are all spay/neutered.