A teen boy outside hits a stationary baseball but it swings backwards and hits him in the groin.
A teen boy at the playground rides a spring rider. When he falls off, the spring animal continues to swing and hits him in the crotch.
While on a camping trip a young boy attempts to break a plank of wood with a single punch, but the wood does not break. He yells after the impact and holds his fist in pain. Slow motion.
A teen girl blows up a balloon at home. It explodes and snaps back, hitting her in the eye.