A teen girl slides off of a treadmill in a home exercise room when she sits on it as it moves.
A woman falls in to a lake after she lands on the metal rail of a motor boat when she tries to jump in to the water while she dances on a couch next to the rail.
A tot girl falls on her face on a roller coaster slide when she stands up to make the car go down the slide and flips head over heels.