The youtube video was funny and brought back some memories seeing him hit the umpire.
One year I was pitching and the home plate umpire was same guy who had been my coach the year before.
I was warming up and he was standing back by the backstop fence talking to some friends.
I foolishly threw a fork ball and slider back then. Bounced every other warmup pitch in the dirt and straight between catchers legs who had enough trouble catching that fork ball when it was up off the ground. Every one of those warmup pitches found their way to hitting that former coach turned ump in the legs.
I felt bad but not bad enough to quit throwing it. Credit to him all those wild warmups never translated in to getting squeezed on strike zone.