terrified vids on Instagram: "Jumping inside an elevator can trigger a safety shutdown, and that’s usually what causes people to get stuck. Elevators are designed to detect sudden, uneven weight shifts — anything that looks like a free-fall, overload, or impact — and the system responds by locking the car in place to prevent damage. A hard jump can trip the emergency brakes, freeze the motor, or trigger an overload sensor even if the total weight inside is well below the limit. The sudden jolt c