Paint the urinal yellow

Urinals are usually white. Pee is usually yellow. One of my favorite things to do is to spread my pee all over the inside of the urinal so that what was once white is now covered in a fading shade of yellow. It’s quite fulfilling, especially when my pee is really yellow, and especially when there’s a lot of it. Painting the urinal yellow is one of the many things that makes being a guy (and having a penis [and peeing while standing up]) fun.