Abstract: Employee #1 was helping his foreman vacuum gravel from a roof under reconstruction. Employee #1 was controlling the vacuum hose while the foreman vacuumed. As the foreman was vacuuming, Employee #1 was trying to reposition the rubber 6 in. diameter hose, which was getting heavier and harder to hold as the gravel entered it. As Employee #1 maneuvered the hose, he caught his toe on the hose and lost his balance. As he tried to regain his balance, he inadvertently stepped on a skylight, which, according to Employee #1, broke like an eggshell. Employee #1 fell through head first, tumbling on his way down, and landing on his feet. He sustained multiple fractures throughout his body.