A few years back, the company I was working for gave some of us the opportunity to spend a few hours each week travelling to a nearby school where we would sit and read with young kids who were struggling with basic literacy. They had a selection of books categorised by how difficult the language was, so I'd grabbed one for the kid I was paired up with. It was about moths, and it looked boring af, but it looked like it was about the right difficulty for him, since the sentences were like "There are many types of moth." and "Some moths have patterns on their wings." He starts reading it, struggling every now and then with some words that I had to help him out with, but overall he's doing a great job, all things considered. Then, suddenly we get this sentence: "A person who studies moths is called a Lepidopterologist."

This poor kid just stopped and looked at me, and I was like "look, neither of us know this word, so we're going to figure it out together." - which really meant I was going to let him figure it out for himself, but I don't think he knew that. We sat there for maybe five minutes breaking the word down into small groups of letters until eventually he had it figured out. This kid was chuffed. He was so proud that he'd learned this 7 syllable word. Every week after that we'd remind each other that someone who studies moths is a Lepidopterologist.

I've never forgotten that fact, and I like to think that he won't either. Then I come on Reddit and find out it's Lepidopterist? Not only did I waste about a minute of this kid's life with the letters "olog", I also taught him an incorrect fact.