Excerpts from A Guide to Proper Etiquette in the Men's Restroom (Original Author unknown)

Graffiti rules:
1. All graffiti is anonymous. If there's any chance somebody can trace your graffiti back to you, don't do it.

Sacrifices must be made. Calculated risks must be taken.

2. Writing graffiti in the open section of the bathroom is only acceptable if nobody can see you. Writing in the stalls is similarly acceptable.

I'm a motherf@ckin ninja at this. If you ever catch me posting up Concerted, I'll give you a pot of gold.

3. If the bathroom is sufficiently public, feel free to insult different ethnic/racial/sexual groups. (no thanks)  If the bathroom is used by a small few, restrain comments to amusing anecdotes or chit-chat about secretaries. If visiting dignitaries from other companies or the government may tend to use the bathroom, graffiti is forbidden.

That's precisely why I don't sticker the Moore.

4. Traditionally, all pictures feature women in various states of undress. Modern standards often include portions of male anatomy, discretely placed. Homosexual graffiti is generally frowned upon.

Tell that to my peeps on Capitol hill.

5. Any sufficiently interesting graffiti will be painted over by the management of the bathroom.

Tell me about it.