Ref kills live ball on inadvertent horn - sub?

[Rich]

Originally Posted by Hartsy

Constant horns from the clock operator and coaches or bookkeepers yelling "SUB!" are 2 things I could do without. Players need to be at the table before play is ready to resume, and if I have already waved in the sub there is no need for a horn.

Wait for the horn and then the responsible official blows his/her whistle and beckons....on EVERY sub. There should be a horn whenever there's a substitute ready to report. If it doesn't come in a few seconds, then whistle the sub in without the horn and remind the timer that we need a horn.

I don't want the clock operator to think it's OK to NOT blow a horn. When I need it, there won't be one.