Come Home To Roost Meaning

(idiomatic) Bad consequences of actions inevitably coming to pass.

Example: 2005 Feb 25, Paul Blustein, “Foreign Investment^s Flip Side; U.S. Trade Deficit Swells Along With Consumption, Debt”, Washington Post:
  At some point, he warned, sentiment among foreign investors could turn against America's deteriorating fundamentals, triggering a sharp sell-off in U.S. stocks and bonds that would threaten to throw the economy's expansion into reverse. "Will those risks ever come home to roost? One can't predict with great confidence," said Summers.