BBC: Renato Soares has seen all sorts of problems in the 33 years he has been running a small laundry in a middle-class neighbourhood in Sao Paulo.
But with Brazil's biggest city facing potential water rationing, he thinks his biggest headache may be about to arrive.
"We have survived recession, hyperinflation, arbitrary changes in legislation and a complex bureaucracy and tax system," Mr Soares says.
"We were also robbed twice. So at this point I didn't think a day would come in which I would...