I hear more and more of that. In my city, they work 2x24 shifts giving them a lot of down time to do renovation work or roofing.

Similar story of a guy in the city, does roofing for a living, only source of income. A bunch of off duty fireman bid on a job he had also bid on, he lost.

They had a lower bid because they had less expenses, could afford to take less money since this was supplemental income (declared??) etc.

Sad...