Experimental thirty second substitution rule.,

[Tim Roden]

funny story from two years ago here in Texas. A game I was working, we had a 30 second substitution situation and after 20 a horn sounded. Not know that it was a warning horn, the my partner proceded to call a technical foul. Then the timer corrected the official. Substitute came immediatly and all was well. Now it is in the rule book, hopefully no more embarrasing false technical fouls.