Baseballs are safe in their most common state, but can quite easily send you to the ER. "Hey, how about we have a game where we have one teenager fire a fast m

Baseballs are safe in their most common state, but can quite easily send you to the ER. "Hey, how about we have a game where we have one teenager fire a fast moving projectile through a space occupied by other teenagers?" "Doesn't sound fun! Let's tell the other teenagers to get in the way of the fast moving projectile."