Has anyone had this happen?

[APG]

Haven't had it happen. The only way to call a T is if we deem the player to be hanging on the rim and he's not doing so to protect himself (player underneath, high speed dunk, etc). The fact a player dunks and shatters shatters the rim isn't an automatic T (except of course dead ball, pre-game, halftime). And I'd imagine the game would be suspended. I doubt most high school facilities would have a backup basket that could be put up in a timely fashion. If this happened in the NBA, the home team is required to have back up baskets which they would set up in replacement.