[soundedlikeastrike]

I've seen it at the ML level, twice I want to say two years ago.
But have seen dozens of times when the thought crossed my mind that it should have been called and wasn't even considered.
I've never called it in 20yrs.(well, several times a game in SP but we all know that's not baseball)

If batter doesn't move or barely flinches, I give him the benefit, he really thought it was gonna miss him or it might break enough I better protect and hang in there.

I have called it because the pitch was a strike, slow breaking ball, at the 15 yr. old level, guy bent at the waste and threw the front arm over the plate.

For me to call it a batter must really dive into one.

On a safety note, lets take a pitch coming right in at the rib area, the batter tightens up and takes it rather than try and duck and perhaps take it on the chin or in the ear-hole. Though it would appear he didn't try and move I'll give him the benefit, perhaps it's just good survival instincts. On the other hand, call it once and see if those pitches don't strat coming in a little tighter and tighter.