Future robots powered by pee

Future robots powered by pee? Urine luck!

There's that old saying that goes, "It's better to be pissed off than pissed on." That is, unless you're a robot.
Researchers from the UK have created a device that works like an artificial heart to pump urine into a microbial fuel cell that would power robots, making it possible for them to turn the waste into electricity.
"In the future, we hope the robots might be used in city environments for remote sensing," where they could help to monitor pollution, temperature, humidity, and waste water quality, said Peter Walters, an industrial designer at the University of the West of England and lead author of the study that appears in the journal Bio inspiration and Biometrics.
"In the city environment, they could recharge using urine from urinals in public lavatories," Walters added. "In rural environments, liquid waste effluent could be collected from farms