Maybe not exactly a public bathroom, however:

A B&B in Scotland.

I saw a sign in a public restroom which read, "Please don't throw your cigarette butts in the urinal."

Under it someone had scrawled, "it makes them soggy and hard to light."

I've been in a stall in Ohare where someone drew a table on the door, with categories across the top row like "type of turd," "color", "size", etc. then they filled in the rows below with their answers. I guess everyone was supposed to contribute and input the details of their own dumps.

It amazes me that somehow in crappy threads like this someone with a 3 year old reg date will show up and bust their posting cherry with something inane as this.

A+ first post

Somewhat of a hijack, but I saw something hilarious in a public bathroom tonight. I work at a university and I used a urinal before leaving tonight. One the floor was a tube of cream, a very small tube. I looked down and it was a presciption dick medication. So some dude has some sort of STD, so he decides to rub it in while standing at a public urinal? Maybe somebody walked in on him and he dropped it. The guy was probably like, "hey is that Dick cream?" And he was probably like, "ahhh... no, I was just rubbing one out". The guy likely responded, "are you sure, it looked you were rubbing it in! You got the clap imo." Anyways, I made sure to wash my hands three times with super hot water!

As far as writing on a bathroom stall,I saw something kind of original when I was in grad school. For a long time, a wall had read "chem hates you" which is obviously not funny. Then one day someone added, "in communist russia," above it. Probably lame, but I found it amusing.

In the bathroom at a bar someone had written, "I fu**ed your mother." Another person added, "go home, dad, you're drunk."

One guy who was in my freshman dorm drew a complete self-portrait of himself, Monet style (little dots), on the door of one of the stalls. It was very impressive; it took up the entire door.

If it's on the inside of the door, that'd be pretty creepy.

Bob Sagat was in your freshman dorm?

Haha...I was going to say Ted Bundy.

moar of a Seurat kind of pointillism than Monet's stippling effect imo

LOL, I thought the same thing.

rofl...I don't even remember what he looked like. This has proven to be his lasting mark on the school.

Yes, it is on the inside of the door, and yes, it is unsettling. Luckily there are three stalls in this bathroom, so usually the other two aren't both occupied.

I couldnt stand Bob Sagat watching me poop.

that portrait is both unbelievably creepy and unbelievably awesome

dane cook is awful and should be shot

"Please flush the cleaner will eat anything"

Who the **** has a pen or marker on them when they go to the bathroom at a bar?

This is so awesome. The argyle sweater and yearbook portrait pose are nice touches.

It's more mystic than it is funny, but:

I AM THE CHIPOTLE OF TRUTH

In the bathroom at Ralph Wilson Stadium, home of the Buffalo Bills.

I got a chuckle out of "All gays are gay!" in a local pub.

Ninja Fact #37....Ninjas can breathe underwater

Guy A writes : "Jesus Saves"
Guy B responds with : "Gretzky puts in Rebound"