what is something you swear happened on here?

a few years ago I swear I read a manga with 3-4 chapters with all fake translations, but the funniest thing is that you wouldn't know until you get told so at the end

it was something along the lines of, "I guess we'll never know now Adachi-kun, since all of our dialogue have been fake since the first chapter."

I've tried asking and finding it before, but still no leads. I forgot almost everything about it now too（￣へ￣）

anyone else have a "I swear this happened to me!" moment?