What does PU do?

[UmpJM]

DTQ Blue,

While I'm pretty new to this stuff, I would think it would be appropriate for the PU in the sitch described, as soon as he saw that his partner had not seen the play, to aggressively and emphatically step out and bang the runner "OUT!!" at 1B.

This would be "poaching" your partner's call, which, in the general case, pretty much isn't done. Given the circumstances, your partner might appreciate rather than resent you doing so in this specific case.

But, maybe that "just isn't done".

I'm curious to see what others have to say.

JM