Agreed, but you're initially faced with two options.
1. Blow the whistle and let the sub in.
2. Tell the thrower to continue. With that option, I'd like to see the T put his hand up and tell the sub to wait.

If you go with #2 (and I would normally), and the sub comes running in anyway, you have a 2nd chance to blow it dead. If you do this, talk to him, but you really should let him enter at this point. If not (and I wouldn't, but some would), call the T.

Under NFHS rules this "second stoppage" is a new opportunity to substitute. All eligible subs can enter at this point and, by rule, the official must allow the eligible subs to enter.

That would be because the NCAA rule is different. Subs are not allowed to come in the game because of accidental whistles.

If you actually did see this, it was incorrect if the high schools were playing under NFHS rules.

Bottom line is, don't over-think this situation. There are very few exceptions when substitutions aren't allowed during a dead ball while the clock is stopped. Those are during multiple free throws (subs wait until the period before final free throw) and when subs report after the warning horn during a TO or intermission. I can't think of any other time when an eligible sub may not enter the game.

The game is easier to administer if you don't create new administrative restrictions. Keep it simple.

So in this case, would you say the inadvertant horn could create a fiasco? Some players stop when they hear the horn, some don't. The sub coming in is part way on the floor before the T sees him and sends him back off? I understand completely about once the horn sounds, you should let him in then. I am just saying, let's try to avoid the confusion and get the game going again. Put the sub in, put the ball in and play on.

No, the sub can come in once the whistle blows. The horn is officially irrelevant in this case, so you ignore it. That's why I tell the thrower to play on, all the players will get it quickly enough.

If you decide to blow the whistle and kill it, let him in.

Yes, this whole mess was created by a over eager timer, or a coach who yelled "Sub" as he sent young Mr. Snuffy to the table combined with a timer who is used to listening to the coach.

Add one more letter to this sentence and it will tell you everything you need to know about why I exist. :D

I as the Lead, should have seen the sub and not administered the ball. To be honest I don't remember seeing him at the table until after when you hear my funky whistle (5 tweets in a row) but i do remember looking at T.

I also take it the majority of you don't blow your whistle before inbounding the ball on the opponents end line. Is that correct?

I blow my whistle to start the game, to start the quarters, after timeouts, or after an unusual delay (judgment call).

Depends on if there's been a delay prior to the inbound play. Where the ball is inbounded is irrelevant to whether or not you blow your whistle.

So....you never blow your whistle to indicate a foul or violation? Whose whistle do you blow? :D

Hopefully a whistle belonging to someone who practices the First Rule of officiating! :)

I carry my 5-year old (tomorrow) daughter under my arm and tell her to scream when I need to stop play. She's louder and shriller than my Fox40.

Question for anyone, do you usually blow your whistle to end a quarter? That has been brought up to us as a point of emphasis since the horn actually does not signal the end of the quarter. Would like to hear if other states are the same way.

We've had this conversation before.

The horn (or light) actually does signal the end of the quarter, with 4 exceptions. Can you name them?

One is "it's not working". :p

Ok, smarty pants, I meant 4 exceptions from the rule book...