Our understanding of reality has been thrown into question in a way we never anticipated: apparently, we've all been using can openers wrong.
A video uploaded to Reddit demonstrates this phenomenon, and it might shake you to your core.
So what's the proper way to use a can-opener? According to this vid, it's with the handle laying parallel to the lid, instead of hitting it at a perpendicular angle.
This method has the added bonus of the can-opener maintaining its grip on the lid even after it's been detached from the can. With the original can-opening method, the lid often escapes the can-opener's clutches and you must retrieve it with your fingers, grossly.