Don't mess with da mule

This is almost unbelievable!

A couple from Montana were out riding on the range, he with
    his rifle and she (fortunately) with her camera.  Their dogs always followed
    them, but on this occasion a mountain lion decided that he wanted to stalk
    the dogs (you'll see the dogs in the background watching).  Very, very
    bad decision.

The hunter got off the mule he was riding and decided to shoot
    in the air to scare away the lion, but before he could get off a shot, the
    lion charged the dogs.  With that, the mule took off and decided HEwanted a piece of that lion.  That's when all hell broke loose for the lion.

As the lion approached the dogs, the mule snatched him up by
    the tail and started whirling him around, banging its head on the ground on
    every pass.  Then he dropped it, stomped on it and held it to the
    ground by the throat.  The mule then got down on his knees and bit the
    thing all over a couple of dozen times to make sure it was dead, then
    whipped it into the air again one more time.  The mule then walked
    back over to the couple (who were stunned in silence) and stood there ready
    to continue his ride as if nothing had just happened.
Fortunately, even though the hunter didn't get off a shot, his
    wife gotthese four pictures.
Now I know why farmers use donkeys and mules to keep coyotes away from livestock.