Girls rule; boys drool. That's the sorry lesson to be learned in the water closets of Coastars, the coffee bar at the heart of Lake Worth's South J St., AKA Little Bushwick. Owners Chris Palacio and Liz Brach figured they had a crowd of young creative types on their hands and said, Hey! Let's leave pens and crayons in the restrooms and see what our young geniuses come up with. What could be bad? But their fond hopes came half-undone. The boys sank to the occasion, rock-bottom, Greyhound-latrine style, unleashing their inner yobbos in crude and filthy texts about body parts and fluids. The girls, however, rose to the occasion, poetically and philosophically. Their walls are even now festooned with instruction and mystery and wit: "Please be responsible for the energy you bring into a room," says the graffiti. "There's gold beneath the highway." "Now something so sad has hold of us that the breath leaves and we can't even cry." "The guy at the counter is cute." Visually, symbols and caricatures are smattered through the lettering for an intricate and sprawling rainbow mash to rival a Persian miniature. Will J Street's boys redeem themselves one day and put their restroom walls to better use? Maybe. But they'll have to bring their own crayons. Chris and Liz took theirs away and scrubbed the walls clean.