Fair Catch or not?

[chymechowder]

I'm not advocating the lighting up of punt returners, but if the receiver gives a quickie, single wave a half a second before the ball gets there, and Team A contacts the receiver (non-flagrant) just after the ball gets there, then I don't see how the signaler can have post-touching protection.

"Begins his charge" isn't in the book. But I see the point. The signal needs to be given in time for Team A to see it and react in time.