A fire that destroyed about 350 portable restrooms at a United Site Services facility in San Antonio, Texas, on Tuesday is under investigation, though early reports state it might have been caused by stray New Year’s Eve fireworks.This is the second major portable restroom fire in Texas in two years.In 2012, the Fort Worth Telegram reported a few dozen portable restrooms were destroyed in a fire at an industrial lot where they were stored. At the time, the newspaper reported that homeless people in the area had been getting onto the property through a hole in a chain-link fence. However,
