I don't eat many onions but SR likes them on just about everything. I bought one of those chopper deals just so I wouldn't have that eyes burning crying to go thru every time. Also, cause I'm kind of stupid, I then wipe my tears away with oniony hands.
I saw this video and said, "ok I gotta try this"
So a week ago I gave it a shot and it worked, but because I was skeptical I tried it again. Core out the end, although mine did not look EXACTLY like that but definitely cone shaped. You can see some of the core still in there, I just gutted it out and right into the trash.
I then sliced my onion, kind of slow, just to be sure. The did tingle just a bit- but no watering, no burning. Nothing.