*Walls that pee back.

The mayor of Paris, who made environmental concerns
a major priority, is taking aim at another threat to the
city's cleanliness -- public urination.

Paris Mayor Bertrand Delanoe, who made all self-cleaning Sanisette
toilets in streets and parks free of charge in February,
is turning to a new method of keeping urination off the
streets and in the toilets: walls that pee back, The
Telegraph reported Monday.

"Le mur anti-pipi" is an undulating wall that features sloping surfaces that reflect urine streams back toward their source, the newspaper said.


"The jet of pee is rather oblique. If it meets a sloping
surface it is sent back to the trousers," said Etienne
Vanderpooten, a municipal architect who has been working
on halting public urination for 25 years. "It is the case
of the arroseur arrose (the sprinkler sprinkled),"