Meltdown

I wonder what it would take for Terry Francona to have a meltdown like this one by Braves minor league manager, Phillip (un)Wellman. I've seen a manager cover home plate with dirt. I've seen a manager cover an umpire with dirt. I have never seen a manager slither up to a pitchers mound, grab the rosin bag and throw it at an umpire. Wow.