Dante loves the sound of his voice. If he is awake, not an hour will go by without him barking at something. Sometimes it's the cat. Others it's because he doesn't want to be told what to do. And sometimes just for the pure joy of hearing his own voice and seeing which one of us will look at him first. I swear that dogs' voices crack too. One moment Dante has a high-pitched puppy bark and the next, it is pretty deep.
He has yet to bark when he is out with me, but I am hoping that time never comes.