Proper signal?

[Brian Watson]

I gave the boot once.

The coach went on the floor (he blew right by me) to go after my partner. I whacked him once, no brainer there. I walked out told him to get back to the bench, he ignored me and kept moving forward (at this point all 5 of his girls were trying to stop him). I wacked him a second time a told to keep walking to the locker room.

It was kind of obvious to everyone so I didn't use any signal. In fact mid motion of the second T the Ad was already on his way out to get him.