Construction slowdowns, a sluggish economy and even a brain tumor have threatened the careers Josh and Shannon Reading have built in the portable sanitation industry. But so far, nothing has been able to derail the couple from succeeding at whatever they take on.Together, the high school sweethearts (and parents of two) have spurred dramatic growth in their startup business, JR’s Johns in Grant Park, Ill., effectively doubling revenue every year, even in the clutches of a recession a few years ago.“Failure was not an option,” Josh recalls. And while that statement might appear cliché, it helped the couple focus and
