ason, a 15-year-old, is mowing the grass in his front lawn as his two sisters, Lisa, a 12-year-old, and Chris, a 14-year old, play nearby. As he pushes the mower, some of the grass begins to back up at his mower’s discharge opening. He reaches into the discharge chute to try to brush away a clump of grass, when he rises, he accidentally bumps his sister’s nose. It is not broken, but it is bleeding pretty badly. What do you do?