If you believe in the butterfly effect, you know that even the tiniest action can cause an avalanche of bad outcomes in the long run. Sometimes, that action is intended; other times, it's something completely accidental.
Just think of the discovery of penicillin: microbiologist Alexander Fleming found the Penicillium mold in his petri dish after coming back from a vacation – he had no intention of discovering antibiotics.
But sometimes, the accidental action has the potential to ruin someone's life. That's what we discovered when we looked at some Reddit threads where netizens asked, "Have you ever unintentionally messed up someone's life? How?"
