If you've ever been on a fairground roller coaster and felt a little bit queasy, spare a thought for the sheer terror this guy experiences. 

As you can expect, being sling shot into the sky would make many of us to lose our lunch, but it also causes this guy to lose consciousness.

And to wake up screaming. And lose consciousness. And repeat as before. 

Check out the video here: 

(H/T: Reddit/joker4366)