Last second shot with light (NFHS)

[sj]

Last Friday the AD came in and told us that they had a clock where the numbers go to 00:00 and then a full one second later the horn blows. The home coach knew it of course and we made sure the visitors were told. I never did get the story straight whether or not if it was broke or if that was the way it was made. This was about the largest school population wise in the state so you would think they could afford to get it changed. We just handled it so that the horn ends the period but we didn't need to worry about it though as we had no last second excitement. My partner had heard a story that somebody somewhere with a similar clock handle it by having one official be responsible for blowing a whistle at 00:00 and going by that rather than waiting for the horn. Anybody ever heard of that before?