I know this is a continuation on a previous theme, but I like this:

Me: "How's your day going?"
Him: "Lousy, why?"
Me: "Want to call our previous housing company and tell them to go fuck themselves?"
Him: "Why?"
Me: "Here's a letter they sent, here's stuff they're claiming, here's the amounts they want us to pay. The first two we agreed to; these others are part of the bullshit."
Him: "Okay, bye."

I am so mad I'm shaking, but I would be too fucking polite to tell them what I really think -- or at least to make it stick. Sure, I talk a good game, but deep down for the most part I'm a complete wimp.

Luckily for me, he can play the bastard when it's necessary and make it work. It may be too late in the day to have resolution now, but at least I have the wheels in motion.