My neighbours across the hallway have taken to putting notices on their door. They change them every week, and although they are always slightly different, the notes convey the same message. Here is the current note.

"Please" do not distrude? Unless it, important! And do while knocking on this door yell your NAME ALOUD. Happy Easter!"

There was also another note, on different coloured paper, attached to the door on the right of the original note.

"Knock loudly so we can hear you!"
- posted by Steven @ 10:29 p.m.