Actually, that was minor league baseball (an affiliate of the Major League Atlanta Braves), and those kinds of things are generally part of the show, although he took it to an interesting extreme.
Within the "gentlemanly" context of baseball as a sport, managerial explosions are really quite traditional and a natural part of the game... the theory being that umpires will be less likely to start squeezing a team on close calls in the future.
I love baseball.
Cheers,
David