I am so frustrated with Izzy, I dont know what to do. Overall he is very sweet and will listen to me. My biggest problem with him...which is turning into a HUGE problem is his barking. When we go on walks he gets agressive and will bark so loud and out of control when he sees other dogs, squirrels, cats or birds, that I cant take it. I hate to take him on walks!!! I know he needs them and I like going too. His bark is so bad that people probably think I am hurting him. He almost screams and squeals like he is hurt. I try to tell him "quiet" or "no" but he is so beside himself that he doesnt listen. I have to pick him up and hold him and walk away. He's also out of control at home when animals pass by the house. He will sit in the window nice an quite until...a squirrel or cat passes by!! At home I tried the pennies in a can and water, neither works. He will stop when I squirt the water or shake the can but he will start right back up again. This is so frustrating. What do I do? Please help!!!