If I'm in stall 1,
Why'd you choose 2, and not 3?
Urinal rules, bitch!
Seriously. If you have the option of leaving a gap instead of not leaving a gap, leave a fucking gap. I don't want you to poop 36 inches from me unless it's absolutely necessary. It's not rocket science and guys figured it out a long time ago.
I feel like all of my haikus are related to public restroom etiquette. But c'mon: ladies, please.