At a fair near Paris, France, a patron believed she was safely strapped in "L'Adrenaline." It's when she found out she wasn't that may have put some grey in her hair.
Riding a giant swing ride that releases the swing from atop a 150-foot tall tower, two women believed they were safe, only for one them to have her harness unbuckle. The malfunction (or was it human error?) left her dangling upside down - barely clear of the ride's platform as the ride swung to and fro for what seemed like forever before two men were able to slow the ride down enough to get the passenger to safety.
Thankfully, no injuries were sustained.
Could you IMAGINE dangling and swinging like that?