Mona Mu is Shep #14, dog #15 for me.. I've had up to three Sheps at once.... and my Ex had three ****zus while we were together, too.
One of my Sheps was on the Show "MotoWorld", 1 and 2, as a lead-in shot, and was also included in a Yamaha ATV Brochure... Thor, the Moto-Dog of Washougal MX Park.
That nutjob learned to open the door of the Mobile Home, and would head down to the starting line, then curl up under my pickup while i repeatedly turned 40 wide open MX bikes loose, all day long.... he had many other talents, including determining who had started a brawl in the pits... and opening the Refrigerator...

you might have seen one of his siblings... the all black dog snapping at a prisoner in the Abu-Ghraib Prison, Iraq.

"I always build the Brakes and Suspension of a race car before the Engine.... You need to teach dogs to stop, before you can teach them to go."
watch the K9s on the live cop shows... their tails are WAGGING as they want to "Eat the Burgler.".. it's FUN to them, followed by a reward. the poorly trained ones attack, but don't know how to stop.

trot trailers don't allow a dog to stop.