How Can We Use Humor to Encourage Respectful Office Toilet Etiquette?

Dear All,

Please share your inputs on how to convey the "proper usage of office toilets" to the employees. I want to convey the same in a funny way; it should not be offensive but should be something they follow with respect.

Looking forward to your inputs.

Best Regards,
Upasna

Here it is, I think it should be pasted...

[IMG]http://www.lostateminor.com/wp-content/uploads/2009/02/chinese-toilet-sign.jpg[/IMG]