When OBS turns into an Illegal Block in the Back

[Big Slick]

Originally Posted by teebob21

My verbalization is not an ASA/USA mechanic, I admit. It's something that I picked up on advice from an NCAA clinician: paraphrased as "When something bad or potentially malicious happens during a live ball by a player which doesn't kill the play, point it out (so the coaches see it) and call it out, so the player knows, too." My call of "You can't do that" was basically a reflex. I had judged her as not reaching 3B prior to the vocalization, when I made the OBS call. I don't feel as though I put her at jeopardy.

This must be "new" because I have never heard anything close to this. Maybe after a hard tag with no other action, but not during a live ball.

Is there a reference in the CAA manual?
(read: this sounds like the "clinician" was making this up)