How would you address this with your partner?

[umpjong]

Sr. Legion baseball, R2 picked off of second. R2 comes in hard standing. BU calls him out and sternly warns the runner that he was very close to malicious contact but leaves it at that. As retired R2 heads towards dugout, PU ejects him for malicious contact.

I was not one of the umpires involved, but witnessed it. Had I been involved I would have huddled up with PU and told him it had been handled and to correct his overstep. Then after the game had a discussion of responsibilities. Really made BU look bad. Both umpires have been umpiring for many years....