Scrub it, Kook

My landlords went out of town for the holidays and sent us this letter that I stuck on the refrigerator. It wasn't until recently I discovered that they spelled my last name wrong. In their defense, I’ve misspelled their last name on rent checks for the past two years. They haven't ever said anything, but I believe this to be a passive / aggressive response. They are 80 year old, broken-english speaking immigrants, so I think they're misspelling might just be funnier than intended. In my defense, they have a name that resembles a star wars character.

Kook*:
1. someone posing very hard as a surfer or skateboarder.

2. someone that goes to every surfing or skateboarding event to hangout, compile pictures, start conversations, and generally be seen with real surfers or skateboarders. "Dude, did you see that kook trying to drop in on me the other day?"

Link
*www.urbandictionary.com