You probably can't list the symptoms of congenital myotonia off the top of your head, but there's a pretty good chance that you're familiar with the disease: It was the culprit behind a video of fainting kittens that went viral a few years ago.
The kittens were launched into a state of paralysis whenever they were scared or surprised and, even though I'm assuming the kid in this video doesn't have the same condition, it might not hurt to double-check.
I mention this because I don't think you're supposed to faint three times in a row while riding The Slingshot at an amusement park. In fact, I'd argue that places you right between pregnant women and the elderly on the list of People Who Shouldn't Be Allowed To Ride.
I'm not saying you're not allowed to black out -- I've ridden enough teacup rides in my time to know that comes with the territory -- but a second loss of consciousness is usually indicative of a larger problem.
I don't know what it means to pass out a third time, but I'm assuming it's not good.