I want to paint the walls of the green room with urine.
What? Why would you pee on the walls of a room?
There's a sewage problem in my town so I decided to draw attention to it by making the walls pissy.
Urinating on someone else's property should not happen. If you want to call attention to the towns sewage issues, you should use your words on social media, it will get the point across quicker.
Pathetic. I'm going to do it sometime during lunch today.
Urinating on the walls is wrong. You're likely to get in trouble, and I don't see how it will help the sewage problem at all.