baseball [Theme]

Let me explain. When I was a kid, I had no friends. And I invented a new sport - a single baseball. I threw the ball, he beat it, he caught himself. And when I tried to develop a scheme of how to make the game a little longer, I realized that the best way is "hit and catch".
If I catch the ball, the batter was out. If missed, but caught before the second bounce, it was considered a hit. If repelled very far away - a home run. The only weak point was that it was necessary to clearly define who you're batting or catching. To play this game, it is extremely important to play fair, well, like himself play "rock-scissors-paper".