Leroy Mwasaru was a high school student at Kenya's prestigious Maseno School when a dorm room renovation created an unfortunate situation.
The school's outdoor latrines overflowed into the local water supply.
Understandably, this made some people quite upset. But Mwasaru saw this as an opportunity to turn something revolting into a revolution.
If he could redirect the overflowing human waste, it could give them cleaner water and help the school save money on fire and electricity.
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