Maybe he's trapped in this world and is bored and annoying people on purpose. Perhaps he wants to tell you he's in a worse place. Or he knows what next week's lottery numbers are and is desperately trying to encode the numbers into the knocking patterns he's using because he can't communicate any other way.
Nope, it's always a warm comfy vague message about being in a "better place".
Edited by Archimedes, 11 November 2012 - 03:47 PM.