dog being house trained

Question
QUESTION: We have a 5 month old puppy and he will relieve himself in two areas of the house.  We keep him in a cage during the day while we are at work and take him out when we get home, but sometimes he waits until he comes back into the house to relieve himself.  How do we break him of this habit?

ANSWER: I would clean these two areas very good with an enzymatic cleaner-a dog will return to an area that smells of urine.  Also I have added a link to my potty training schedule:
http://www.jumpinjacs.com/home/housebreaking.htm

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QUESTION: We have had two  female cats for 5 years, now we have introduced the new puppy into the mix.  He is energetic and at times bounces over to the cats.  He is now 5 months old and has been here for 2 months.  They growl and hiss at him.  We have set up a gate so the cats have a "puppy free" area for themselves.  The dominant cat has recently gone after the dog and attacked him.  No one was hurt but it looked like she could have hurt him.  He did nothing to instigate it that we saw.  How do we try to get them to a livable leave me alone state and no one is upset that the other one is around?  Also he sometimes jumps the fence and eats the cat food.  Will this upset his stomach?

Answer
The cats are most likely responding to his puppy state of energy.  This is something that generally decreases with time.  As far as the cat food, it will not usually upset a dog's stomach, however he is replacing the necessary nutrition in his food with improperly balanced (for a puppy) in the cat food.  I would move the cat food to a place he cannot reach such as the top of your dryer or a cabinet.