No one like when their eyes burn when cutting onions. It doesn't happen every time you cut onions it just kind of sneaks up on you when you least expect it. I have heard tips on burning candles or wearing goggles to keep your eyes happy but here is one that I use all the time and it works perfectly.
If your eyes start to burn put your face in the freezer for a minute or so. The burning will go away quickly every time!