I knew I'd catch some heat - but hey that's life.
However, the get to 3B to help out idea was taught at a clinic by professional umpires that have several years experience and are instructors at Wendelstat's. You don't have to like it, or even agree with it. I'll take the crap for my answers on the other two situations, but on this one I'm standing my ground.
I may have had my situations mixed, but w/R2 only or with R1 and R2 why can't PU get to 3B (not discussing the fly ball to F9 going toward the line - that's his first priority and he needs to stay on the line). With R1 and R2 he does need to get down there (of course BU isn't going home in this sitch either).
Admittedly with only one runner, BU has nothing else to do. That's not my point. My point is simply that if your PU busts his @$$ to get to third to help you, then you can bust your @$$ to help him. Does he have to go, no, but IF he does then...
Anyway, it is a mechanic taught by the pros for two man mechanics.
Throw me under the bus (as Steve so politely pointed out

) - I don't care, I have a reserved seat, AC and a good view.