I don't think it's come to putting her down yet. There's a few things that need to change. As I've already mentioned, I have to involve her in some things that give her purpose for being. I've already started taking her on much longer walks than before, trying to tire her out some. It takes out some of that agressiveness. I also have stopped cutting her any slack as far as pulling me in the direction she wants to go. She has to heel all the time we're out and she's not allowed to go to other people we meet on the walks. She has to pay attention to ME... or else she gets a good yank on her leash. She tends to ignore the more gentle yanks these days. I've already looked into a refresher course in obedience. Next, I'm ordering The Dog Whisperer CD. I really like his techniques.

If she refuses to learn, then I'll have to give it some more serious thought.