How the Horse and the Bull Raced Against Each Other
Once, a bull and a horse argued about who could run faster. The horse claimed that he was faster, but the bull said:"I could run faster than you, but I have so much strength that I'm afraid the ground might collapse beneath me. But still, let's race."
So they started racing. The bull ran and ran, but when he reached a ditch, he tumbled into it. Lying there, he thought, "Well, the ground is collapsing beneath me after all."
Since then, bulls no longer run unless they are struck with a switch.