what kind of advice is that?

dude, seriously

all you need to do is slice both ends off the onion & then rinse the cut ends under running water

if you slice both ends off, you'll notice this white, milky substance oozing out of the cut surface

that white milky substance is what makes you cry.

so if you wash it away, look! no more tears.

hold a piece of bread in my mouth... I'd have to buy an entire loaf of bread just for that purpose, considering how many onions I use.

I've never heard of that! I usually just keep them refrigerated.