A worker was checking the rooftop doors of a steel fabrication plant’s blast room for the cause of a noise when the doors opened and he fell 24’ to the steel grate floor. He suffered fractured bones and a concussion, among other injuries. At the time, he wasn’t wearing a safety harness or any fall-arresting gear, which was available. And his assigned supervisor wasn’t present in the workplace nor was anyone else supervising him. The company pleaded guilty to failing to provide supervision to a worker and was fined $75,000 [MacDonald Steel Ltd., Govt. News Release, June 19, 2013].