A man jumps onto an exercise ball at the top of a sand dune and he gets bounced off and falls down the hill.
A teen boy skis in the winter snow down a slope for a race and after he crosses the finish line, he trips and falls.
A girl rides a sled in the winter snow down a hill and can't stop before she falls into a ditch.
Security camera footage of a man who rolls a trashcan down the driveway after the garbage truck passes his house, so he starts to roll the trashcan up the hill to chase the truck.