Ha. Might have been the same teacher that showed us the 3 perspectives a story can be told from - 1st person, 3rd person, 3rd person omniscient. I asked "What about second person?" and she said "There's no such thing."

When I learned 2nd person is indeed real I was pretty mad about that. Of course I should have already known it was real, reading Choose Your Own Adventure books, but I just didn't make the connection.