SUBREDDIT: r/tifu
TITLE: Another childhood TIFU
POST: I read the story about the guy stomping the cup that he placed on a nail to keep it still and it reminded me of the time when I was a small child that knew everything at a young age.  I had seen in some cartoon where a character stepped on a rake and it hit him in the face.  Since I was clearly a genius, I knew that the rake stomping bit was clearly BS and I went outside to prove it.  I found a rake and placed it in the yard and then I stomped the ever loving shit out of it.  You can imagine my surprise when an instant later I had a very sharp vertical pain emanating from my face as well as two busted lips.  That day I had a TIFU and a TIL moment in about a millisecond.
TL;DR: 
Genius kid me stomped a rake and didn't expect to get hit in the face.  Got hit in the face.