Hmmmm. IMO this is best handled by the opposing coach -
"Hey Janey, when the other player rushes at you and starts waving her arms & yelling simply dribble around her if you can or pass the ball to Mary who'll be waiting by the sideline."
I'm not recommending this but if you're inclined to...errrr....help little Janey you can simply look for and call any contact when this happens. I would not T this. I would not speak to the coach beforehand.
Reffing rec league ball is NOT for the faint of heart
