I wrote a response, gonna see what happens when I come back.
EDIT: 7:45, wrote "Hello Plasterface"
When I got back to my room(approx 9:45), there was more writing on it. I've left a response.
But some things are private.
I've left my room, hopefully when I return there will be a new response.
EDIT: When I came back there was a new response. I've figured out that if I'm away from the note, or preoccupied with something else, he will respond, but not otherwise. We've come to an understanding.
I've got a plan now.