Writing 99, via Mr Bister

Hudiksvall SWEDEN 82480
Unisex restroom, 2nd floor.

Den som tycker att sex är skönt har aldrig varit riktigt skitnödig...

Translation from Kristian: Anyone who thinks having sex is great, has never had to take a crap when you REALLY need to.

Janitor's note: This seems to be be a common one, in many languages.