A woman tries to help a man do a handstand and he can't get his legs into the air and accidentally hits her in the face.
Two young men bounce exercise balls around a gym and one of them throws his and hits the other one in the face.
A teenage boy and girl run into each other with exercise balls outdoors.
A young girl swings on a swing set and a man rolls a large, inflatable ball at her. The young girl kicks the ball hits the man in the face and he falls down outdoors.