Training a Pit Rot mix doesn’t seem too difficult.
http://m.youtube.com/watch?desktop_uri=http%3A%2F%2Fwww.youtube.com%2Fwatch%3Fv%3DenlCkTzcI-s&v=enlCkTzcI-s&gl=US
Or the non-mobile version even.
http://www.youtube.com/watch?desktop_uri=http%3A%2F%2Fwww.youtube.com%2Fwatch%3Fv%3DenlCkTzcI-s&v=enlCkTzcI-s&gl=US