"Going" by Sonar

I am at a Starbucks right now, in Port St. Lucie, Florida. This Starbucks has one annoying feature that I have also seen in other Starbucks: The light in the rest room is motioned controlled! So as you are standing there doing your business, the light goes out. You can no longer "aim" visually, but need to depend on the sound. Of course women don't have this problem as their anatomy puts them much closer to the "target".