I'm playing with a guy and he hits his first serve into the net. It rolls into the middle of the court, like in the middle of the court between the service line and baseline. He's getting ready to hit his second serve and just leave it there. I hold my hand up and politely ask him to clear the ball. I don't want him getting hurt, but that's his business but having the ball there is dangerous and it's a distraction to me. He basically tells me to mind my own business and proceeds with his serve. Now I don't want to see anyone get hurt in such a fashion, a teammate in high school had that happen and suffered a really gruesome ankle injury, had to have major surgery and was out the entire year. I see a ball there and it just makes me nervous. Is it within my rights to ask him to clear a ball on his side of the court?