Streak: A mules eyes set outside his skull, a horses set deep inside his skull. The mule can see it's front feet, a horse can not.
Oldshooter: We always got off and lead the mule to the fence. The power a mule uses making that jump, no one could stay on anyway. You will note a mule jumps almost straight up, and it would jump right out from under you.
I used two big mules working wild cattle in the pens. If an old cow charged, the mule would turn and strike her in the head. Steel shoe usually killed the cow. A horse would try running, and get gored.
When I was going to shoeing school in Phoenix we had a Rancher bring in a Mule for shoeing. This Mule had been running with the Mares since birth, and never fooled with. We were unable to do anything with it. Old Delroy, the school owner took the job. Delroy had us drag it to the work area, throw and hog tie it on the ground. Delroy selected one front foot. He trimmed, cleaned out the frog, and leveled the foot. Then he shaped the shoe, nailed it on, and clinched the nails. Once Delroy was done with the first foot he had us untie the Mule. Mule got up and raised it's foot checking out the new shoe. He stamped his foot a few times, then got interested in the feed he could smell. Delroy put a feed bag on him and finished the other three feet in a normal fashion. Delroy explained that once the Mule knew what was going to happen, and that it was not going to hurt, he was OK with it. And he was right.