On my youngest son's t-ball team, it took us several games to get the kids from all diving on top of the ball & each other & creating a pile- like the video. We finally managed to control it, but there was 1 kid who kept doing it, to the point that he'd tackle & wrestle the ball away from whoever had it with all his strength. After weeks of dealing with this, we realized once he got the ball, he was holding it up his face to sniff it- he just liked the smell of a new baseball, lol. So we came up with the idea of giving him a brand new ball to keep in his pocket during games. He never piled on teammates again, when he felt the urge, he'd just pull the ball out of his pocket & sniff away.