Roller coasters are fun because, despite all evidence to the contrary, things are going according to a plan set down by some very smart people. If things don't go according to that plan, however, you are in for a very bad time.
Like the passengers in this video of a stalled roller coaster at Universal Studios in Osaka, Japan. The Jurassic Park-themed Flying Dinosaur stalled on its tracks around 4:45pm on Thursday, and its 60 passengers were trapped for two presumably terrible hours. And on top of being stuck, you ride this roller coaster while prone, which means these riders were looking straight down at the ground for hours. One carriage was stuck between 65 and 100 feet above the ground -- and the other far luckier carriage was stalled just before the terminal.