Gym Class Parachute
Whenever your gym teacher pulled the oversized parachute out of the storage closet, you know gym class was going to be lit. Everyone would stand along the perimeter of the parachute, hold onto the edge, send it upward, and two people had to run underneath to the other side before the parachute fell on top of them.
In some cases, those two students would end up bumping their heads while scurrying their way to the other side, and the school nurse would give them an ice pack and send them on their way. Now, even getting up to do any kind of physical activity is a huge strain on our joints.