Odd sticker next to all the urinals in a mens room - in some big modern glass tower in Singapore.

The copy reads really oddly. The "no flushing" part presumably refer to the auto-flushing mechanism, I think. There is a fine for not flushing in Singapore, so it cannot possibly be advocating this. But why? All urinals in modern buildings auto-flush as far as I am aware.

"Shoot" presumably refers to "leave" or "walk away". Right?

The black cube is a pure mystery. Any ideas?