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Pee-resistant walls will return fire if you pee on them

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A Jacksonville-based company has figured out a way to repel liquids – a tool useful in thwarting public urinators. Surfaces painted with the pee-proof paint will have some of that pee splashed right back at them.

Take that, pee-pee bandit.

The company behind the masterful pee-thwarting paint is Ultra-tech. It’s formulated to create a rough surface with little hills and valleys. That keeps liquid from adhering to the surface and sends it flying right back to where it came. In San Francisco’s case, officials hope it’s the unsuspecting pant leg of a guy taking a leak.

According to the San Francisco Chronicle, officials tested the paint out using a water bottle on one of nine walls now coated. To their excited surprise, it worked. Another video posted by the San Francisco public works team shows a demonstration. A man wearing khaki pants squirts a water bottle toward the treated wall and immediately jumps back as he’s showered with the splash.

Officials are putting signs on walls painted with the pee-proof miracle paint warning would-be urinators to use a more appropriate venue to relieve themselves. However, the signs do not warn that the walls pee back.

The paint idea comes after the Golden Gate City had struggled for years with too many people using walls as restrooms. Public urination came with a minimum $50 fine, but still the city struggled to respond to multiple calls to clean up stinky walls.

If the program is successful, San Francisco plans to start painting more walls with the special paint. Regardless, if you are planning a trip to the city, it may be a good idea to hold it lest ye wind up with soaked pants.

Janelle Irwin has been a professional journalist covering local news and politics in the Tampa Bay area since 2003. She also hosts a weekly political talk show on WMNF Community radio. Janelle formerly served as the sole staff reporter for WMNF News and previously covered news for and various local neighborhood newsletters. Her work has been featured in the New York Daily News, Free Speech Radio News and Florida Public Radio and she's been interviewed by radio stations across the nation for her coverage of the 2012 Republican National Convention. Janelle is a diehard news junkie who isn't afraid to take on big names in local politics including Tampa Mayor Bob Buckhorn, the dirty business of trash and recycling in St. Pete and the ongoing Pier debacle. Her work as a reporter and radio host has earned her two WMNF awards including News Volunteer of the Year and Public Affairs Volunteer of the Year. Janelle is also the devoted mother to three brilliant and beautiful daughters who are a constant source of inspiration and occasional blogging fodder. To contact, email

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