I can't handle the sight of broken bones -- Reddit, what thing makes you completely uncomfortable?

I consider myself to be a pretty non-squeamish person. I don't mind blood or gore or anything. But, if you show me one broken bone, a limb bent in an unnatural way or bone protruding from skin and I devolve into a hot mess...

So, what things can you NOT stand?

What disgusts you and makes you swoon?