With the money he earned, he was able to pay rent for his room and buy food.

FORBES: Sudhir Ruparelia, Uganda's Multi-talented Property Baron

Note that for an owner-occupied home, the "income" earned from the building--the net rent you don't have to pay--is exempt from tax.

FORBES: Investment Guide

Some said they were given so few hours that they hardly earned any money after their boss and landlord deducted rent from their paychecks.

WSJ: Guest Worker Visa Troubles Visit McDonald's