My brother mentioned "The Pain Olympics" to me yesterday, he said it is THE most disturbing video on the internet. So I decided to search and find it. OMMFG!!!!!
I refuse to attach a link, I'll let you find it on your own, but if you've seen 2girls1cup, that is barely a warmup to this video. View at your own damn risk if you end up finding it. And I'm sorry ahead of time.
Here's a dude's reaction from youtube. Honestly, his reaction is on par with how I reacted.