How much is too much?

[DeltaRef]

This is for NFHS rules situation. How much "howler monkey" yelling does an official have to take before he throws the flag?

If you are out on wing, do you throw the flag, or do you wait for your white hat to save you?

And finally, if this is a school sponsered activity, and in effect, a classroom, then why should any abusive behavior be tolerated? If it wouldn't be appropriate in the school then why allow it on the field?