[so cal lurker]

Originally Posted by griblets

In 8 years, I hadn't either, until my last game of this season. I had the exact situation as the OP during a MS championship game. During a free throw by V1, two home students came out of the stands, under the basket about 5 feet off the base line, jumping around and waving their arms. The stands were another 5 feet behind them. By the time it was noticed, the shot was on its way. When the free throw was missed, we allowed the free thrower to re-shoot. Administration took care of it immediately.
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Our MS CYO rules specifically permit awarding new FTs for spectator behavior during a FT. My son' steam benefitted from a call in the playoffs with 10 seconds left down by 2 ....