Fate struck Jason Gibson in the form of a portable restroom landing on his front lawn.The lone restroom unit and a guardian angel in the liquid waste industry helped transform Gibson from a factory worker stuck in a rut into a budding entrepreneur with a growing portable sanitation business. Today, Gibson, 30, operates a small company, 64 Portables, just outside Lexington, N.C., where he grew that one unit to 400, and is setting his sights on emerging grease trap waste processing technology and a “green industry’’ future.AN UNEXPECTED DELIVERYSeven years ago, Gibson was unfulfilled in his career working in a
