lol, Schteve is right!! We had a foster chi who was very smart and we taught her tons of trick, including speak. Then she developed the behavior of speaking (it was a really loud high-pitched howl), and would do it whenever she saw food or when she wanted to play. It took way longer to correct the behavior than it was to teach

Gonzo will not speak, unless I'm on another side of a fence or door than he is, and I tell him to bark. He has always known that barking without reason is bad, and he just does not bark.. its actually a good thing, but teaching them "speak" is fun anyway

Lexi's mom, I heard that standing where your dog cannot reach you helps to teach them to speak.. like, stand on one side of a small fence or babygate, and jump around and taunt her until she barks ^^