Abstract: Employee #1 neglected to turn off the pilot on the water heater while he was using paint thinner and rags to clean a greasy floor so that linoleum flooring could be put down. As a result, a ball of flame came out from the bottom of the water heater and ignited the entire floor, as well as Employee #1's clothing and hands. He tried to run out of the room with the gallon can of thinner, but fell. The paint thinner set the stairs on fire. Employee #1 ran through the flames and rolled on the grass lawn outside to extinguish the flames. He suffered 2nd-degree burns on his face and both arms and hands, and 3rd-degree burns on his left leg.