I personally, have never ridden on M:S with someone who has become ill enough to throw up on ride. I've only seen people get kind of woozy afterwords. I feel bad for this one kid who had to have been the age of 8-10, his parents were asking him if he felt ok, and you could easily tell that he wasn't feeling very well, he looked dizzy and just play crappy. But otherwise I have never seen anybody who went all-out and puked on the ride, has anybody here seen or done this?