I don't have any barkers like that, only when the bell rings or something but i do know how crazy it can be because my friend's Yorkie barks nonstop. He barks at everything! It's soo annoying when i visit his house. When he barks try putting him on his back and holding him there for a while until he stops. My bf's sis' dog is only 3 mos but it looks like he will be a barker too