terrified vids on Instagram: "Ladders are one of the most deceptively dangerous tools people use every day. In the U.S. alone, ladder falls send more than 130,000 people to the emergency room each year, making them a leading cause of serious home and workplace injuries. Most accidents happen from heights of less than 10 feet — low enough that people don’t think twice, but high enough to cause fatal head and spinal trauma. What makes ladder accidents especially dangerous is how sudden they are. A