When I was in college, I took a night class that had me on a very lightly traveled country road in the late evening. I was about 12 miles from home when suddenly...'BOOM!'..there was a huge explosive 'flash' right is front of my windshield! Scared the begeebers out of me! It was the middle of nowhere and there was no one there; no cars, no houses anywhere near. It was like a huge firecracker sparkler thing. When I got home and inspected the car, tere was no sign of fire or carbon or anything. I still have no idea what it was. It was south Texas in the fall of 1977. Anybody else have anything like that?