acting out

Question
I have a male 14month old pom,named Poppie.  I also recently adopted a female 11 week old welsh corgie, whose name is Little Girl. I have had Poppie since he was 8 weeks old, we also have a one year old son in the home.
Poppie was doing really well than all of a sudden he started tearing things up, furniture,carpet, and whatever else he could get a hold of.  We assumed maybe he was not getting enough attention with the baby being around, so we got Little Girl.. Poppie gets along with her wonderfully, maybe even to well.  The two of them use the bathroom anywhere they possibly can and eat holes in the carpet, like in the middle of a room there is a hole.  
I am unsure what to do, they are rarely home alone, at most they spend three to five hours alone a week.  Our sitter for our son comes to our home so that the dogs are not alone. Please if you know of anything that I can try, by all means let me know.  Thank-you for your time very much.
Chantel

Answer
Get him neutered if not already.  Spay her when the vet says it is the right time.  Begin obedience training with both.  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

Keep a close eye on them both at all times.  Close doors or use gates to keep them in the same room as you.  When you see one of them eliminating or inappropriate chewing, give them a sharp ''Ah, ah, ah!'', and take them out or offer a chew toy.  

When you can't watch them, crate them.  Other dogs may
not be as bad as the young Labs I am plagued with.  Still your house and dog
will be much safer with the dog in a crate when you are away.  The dog may be
happier in its den than loose in the house.  It relaxes, it feels safe in its
den.  It rests, the body slows down reducing the need for water and relieving
its self.  Dogs that have been crated all along do very well.  Many of them
will rest in their crates even when the door is open.  I think the plastic
ones give the dog more of a safe, enclosed den feeling.  They are harder for
dogs to open too.    Metal ones can be put in a corner or covered with
something the dog can't pull in and chew.  Select a crate just big enough for the full grown dog to stretch out in.

Leave it some toys.  Perhaps a Kong filled with peanut butter.  Don't leave
anything in the crate the dog might chew up.  It will do fine without even any
bedding.  You will come home to a safe dog and a house you can enjoy.

Accidents and damaged possessions are the fault of whoever was watching the puppy.  When you are watching it, immediately correct it as soon as it goes for anything except its own toys.  In a quiet, but firm voice ''Bad dog, its name drop!''.  Gently remove what ever and replace it with one of her toys, or if older, hold eye contact until the puppy drops it.


A dog that has not been crated since it was little, make take some work.
Start out just putting its toys and treats in the crate.  Praise it for going
in.  If you have been able to trust it with any bedding, put that in the crate.
Feed it in the crate.  This is also an easy way to maintain order at feeding
time for more than one dog.