I had a mini meltdown when I came to work yesterday because someone (well, one of the partners
) came in over the weekend to install some new fax/scanner/copier equipment and messed up stuff on my desk.
I told the office manager about it as soon as I got in (by Instant Message, she is in another state) and she said, Oh my, he will get a memo - everybody knows you always keep a neat, clean desk.
I said, Indeed they do! 
And I am burning a vanilla sugar cookie candle on said desk as we speak.
ETA, No, I did not really meltdown, and yes he will get a memo. We are all family here and he will take it as a joke. Which it is, kinda.