Just for the hell of it

I have to go down to the local police station in a moment to try to re-(re-re-)register my "temporary" (er, 5 years and counting) residence.   I am tempted to wear a t-shirt I inherited from my pugnacious brother which bears the slogan: "Which part of FUCK OFF don't you understand?"   But then again.... I don't like to be unnecessarily confrontational.   And it's not written in Chinese.