So I was minding my own business, reading a book today. No big deal, just killing some time. I had seen some questionable punctuation, but nothing that couldn't be reasoned away.
Then. Horror of horrors, I found this:
Update: as I was reading the prompt for my next lit paper (noting that the prompt is as long as the paper is supposed to be), I found yet another you're/your error! This is an English professor! What is the world coming to?!