Hamburg's St. Pauli is one of the world's most famous red light districts. It attracts around 20 million visitors a year, but it's also a bit smelly because, after a night on the tiles, a good number of those visitors urinate in public places. Now, in a fit of poetic justice, the walls of St. Pauli are being upgraded so they retaliate on micturators in kind.
Almost every major city has a problem with public urination, and party areas like St. Pauli can often seem so much like visiting the inside of a chamber pot. This is particularly distressing for the merchants and residents of the area who have to put up with the stains and smell of wee on a daily basis.
But now, according to Julia Staron of Interessengemeinschaft St Pauli (an interest group for companies and businesses based in St. Pauli), it's "pee-back time." Prohibitions and fines haven't worked very well, so the local authorities are giving chemistry a try. Walls in the district were sprayed with Ultra-Ever Dry super-hydrophobic, oleophobic nano-coating, which is so water (and pee) repellant that urinating on a treated surface becomes a shoe-wetting, trouser-soaking exercise.
If you are visiting St.Pauli and get caught short, the video below warns that not all treated walls have warning signs posted.
Source: St. Pauli Pinklet Zurück via St.Pauli Blog
Of course I am not discussing it here.
Now how about a paint that makes removal of graffiti much easier?
Much better to put in more public restrooms or even outdoor urinals.
First problem is that most of them are drunk, which means confused, aggressive and with muddled vision. Many wouldn't know that the wall peed back until the next day.
A more entertaining solution would be to mildly electrify the walls. Perhaps city issued catheters with bags?
On a serious note, everyone knows, when you gotta go, you gotta go, and no amount of dissuasion will make a lick of difference. As suggested earlier, plentiful access to urinals is the key.