OIC, I thought you meant by your statement that he liked other dogs and cats that you meant "your" other dogs. My mistake.
http://forums.somd.com/showthread.php?p=1381999#post1381999
So I guess your water spraying method didn't work huh?
If he is kept outside, how is he bothering you? Is he barking for attention or just running off :shrug:
You know I am really trying to understand your situation here, but, please don't make up stuff about him, it will do him no favors in trying to find a good home. You need to be honest with prospective homes.