Pitcher intertionally hits plate ump

[Dakota]

This thread accepts as true that this was an intentional act.

If the umpire behind the plate ejects for this, he had better have more evidence that just a pitch the catcher didn't catch. Perhaps the prepitch conference is enough, but I'd also look for facial responses from the pitcher, etc.

This would be a good opportunity for his partner to step in and make the ejection. That way, it can't be viewed as "personal" on the part of the PU.