Have you ever wondered how to make a horse turn green with envy while simultaneously driving a Border Collie crazy AND confusing them both at the same time? Well, just in case you ever need to know the answer to this odd bit of trivia, I'll share it with you. It is super easy. All you have to do is open a gate for a second while the chubby horse's back is turned and let the pregnant donkey out onto the lawn to nibble new grass. Horse is immediately consumed with frustrated jealousy. Border Collie is immediately aghast at this blatant breakage of the Number One Rule that says unsupervised equines are NOT allowed out of the fence. Both are totally confounded that the human has done such a thing. Donkey is blissfully unconcerned.