Hack Of The Night : No tears when cutting onions without wearing glasses

I'm personally not a fan of onions, unless they're involved in some sort of potato chip flavor.  I don't even understand why they make our eyes tear up?  Like, what's the point of that?  Is it some kind of defense mechanism?  Plus, once someone gives you what you think is a candy apple, and turns out to be a caramel covered onion, you won't be much of a fan.  There's plenty of ways to stop the tears when it comes to cutting them, and for this one, it doesn't involve wearing sunglasses, which I hear is a popular method.