People sometimes faint under stressful conditions, like skydiving or riding on a roller coaster. This can be frightening, both for the fainting person and for those in close proximity. Are they dead? They were screaming just a minute ago! But then they wake up, and go straight back to screaming again! It’s like a human reboot operation. We can assume that all the folks in this compilation video are fine now, although they may have given up thrill seeking adventures. Contains NSFW language. -via reddit