It has come to our attention that you are having a rather...trying experience with your neighbour, the infamous Mr. Johnson.
We're not saying you're being exasperated, but... actually, that's exactly what we're saying.
Here are some passive-aggressive letters to help you express your feelings in a suitably subtle and non-confrontational manner:
Letter 1: The "Oh, I'm just concerned about the noise" letter Letter 2: The "I'm having trouble sleeping, but I'm not saying it's your fault" letter Letter 3: The "I was wondering if you could keep the noise down, it would be great" letter(Note: These letters are entirely fictional and not actually recommended. Or are they?
Also, just a heads up: Mr. Johnson has been known to have an extremely thick hide. Use at your own risk.