Our rescue dog, Buddy, has taken up BARKING REALLY LOUD while in the car. Maybe because he was muzzled for 2 years with a nylon muzzle, and could never voice his emotions . In any event, it's driving me NUTS! He used to just whine really loud. I keep treats handy in the cup holder for when he's quiet. If he isn't barking, I immediately say, "Good boy being quiet" and give him a treat. He's leashed to the seat belt in the back seat so he can't bounce around. Yelling at him "NO BARKING!" certainly doesn't work (though I must say, that is the first impulse)- I gave that up - he just thinks I'm barking with him! Any suggestions?