Maybe I’m just not used to this kind of american humor, but I found it hilarious: OCR’ed after the break.
Sorry for the iPhonish quality. The text reads: “By installing this water-saving handle with dual-function flush, this facility has demonstrated its commitment to protect and preserve the environment. For the system to work, we need your help. Please take a look at the diagram above and push the handle in the direction which best suits your needs. With your assistance, we can do our part to conserve this precious resource.”