Bathroom Rules for first graders

At the beginning of the year, I always go over the rules of the restroom: use whispering voices, do not play around, wash your hands, come back into the hallway and sit quietly.
Around mid-year, I think I should add some more rules.  Here goes:

1. Do not step in the water puddle on the floor in the first stall.
2. Do not put water bottles in the toilet.
3. Do not attempt to take water bottles out of the toilet.
4. Do not throw water on anyone else.
5. Do not crawl under, over, or peek into stalls.
6. Do not turn out the lights and hide, then pop out to scare someone and scream.
7. Take off your gloves before washing your hands.
8. Always flush the toilet.
9. If the toilet will not stop flushing, do not run screaming from the restroom. 
10. (for boys) Aim for the urinal.  Do not aim up in the air, onto the floor, or treat others as a target.
11. Do not sing at the top of your lungs just to hear your voice echo.
12. Wrestling is not allowed in the restroom.
13. Attempting to spider-man climb the walls is not allowed either.

So there are my 13 rules for the restroom. I'm sure I'll have to add more as May approaches. Hmmm...