Way OT- Sports Trivia question

[rotationslim]

Off topic, so if you are offended please move along, I did think readers of this board would be interested in this item:

I attended a sport last night, High School, where the Coach, or player from the bench passes a live ball into the field of play, to an active player.

Any guesses what sport it was?

Not a trick question, just a observation of an odd rule in another sport.

Any guesses?????