Throw from F2 hits batter's bat on backswing - Call?

[bigwally]

That's right. We were taking the OP to the next few levels to establish that the follow through can ,indeed, cause interference in some situations. Now, claiming ignorance, I was always under the impression that 'actively' meant just that, being in physical motion. The concensus seems to understand that 'actively' means 'something unusual' or out of the norm. Who's interpretation is this? Where did it come from and when was that established? Is there a case play? Is it printed somewhere for all of us to see and learn from? If not, it should be