So riding a roller coaster can potentially cause your lung to deflate like a balloon. Now that’s a ride!
A subdural hematoma occurs when veins in your brain rupture for some reason (usually a head injury), resulting in blood pooling underneath your skull. The pressure created by the pooling blood can deform your brain.
A fluid leak sounds like a car problem and not a person problem. Ick.
Approximately four people die every year in the United States due to a roller coaster-related injury. Given the abject stupidity of a good portion of humanity, I honestly figured it would be worse than that.