^^^ To add on to londonguy's point. This is already understood and has been joked about and explained by comedians probably since the invention of the urinal. We don't need mathematicians wasting there time, effort, and years of education on this subject especially since more and more restrooms are adding dividers between urinals making the issue of privacy pointless. In short... who cares. Now if you want to know some really impressive math check out the below scene from Silicon Valley.
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https://youtu.be/a4pO1-R7tU8
Does I count if you use the sink?
Sometimes the urinals are too far away. lol.