Alright.. here is the problem. I have a 16 year old dog and then we fond a stray 2 year old dog. Last night, my cousin brought over his pit bull. Well.. when his dog was a puppy, scruffy (my terrior) would play with him. Now that sabastion(the pit bull) is older, all scruff wants to do is attack him. It's wierd thouhg. Sabastion is well-trains and won't fight unless my cousin tell him to 'protect' Scruffy won't listen when he wants to fight him. He even bites me when I try to control him. How to I stop this over-protectiveness? Because, Scruffy is the type of pup who always wants to play. Not fight. I don't like that. I want it to be where anyone can bring their dog in and he's okay with it. Scout, my 16yr old dog gets jealous and barks. I'm not sure if she'll go after Sabastion too. She probably will because every since we got scruffy she's been quite the Biotch.

good luck with your horrible problem...i have no advice for you.

Make it do stuff and if he does it, give him food......

At a local pet shop like Pets Mart you might be able to get some classes. My brother's dog got classes and she is great and can do all kinds of tricks. All you need is some extra help.