I totally didn’t see this somewhere and start writing it on the walls in middle school:

Those who write on shithouse walls

Roll their turds into little balls

Those who read these words of wit

Eat those little balls of shit

I heard it as

"In days of old,

When knights were bold

And condoms weren't invented,

They put their socks upon their cocks

And babies were prevented."

Not enough doodle cocks & swastikas.

From a porta potty: Here I sit Tired and dirty Trying to hide Until 4:30

Here's some toilet poetry I read once:

Some come here too sit, think, and write on the walls. I come here too shit, stink, and scratch my hairy balls.

i used to fold a paper towel into a kind of bubble box and get it wet. then i'd throw it hard onto the ceiling where it would stick for about a minute. then i would wait for it to fall on someone coming in and i'd giggle for decades about it.

Here I sit, all broken-hearted

..and the Shithouse Poet strikes again!

in Germany it's the other way around.

It’s the same person, they wrote on both walls