I was at a job site on Fort Jackson this morning when I heard a plane flying over. As usual I looked up to see what it was. It was a small high wing single engine plane that I'm not sure of the type as I couldn't see it for a building until it was going away from me. I went about what I was doing and about 30 seconds later a F-16 came over hauling butt. It approached and overtook the little plane from behind left. After overtaking the F-16 rolled right then left and banked a hard left circle. The F-16 again overtook the little plane and slowed in front of him. I then lost sight of them, but a couple minutes later I saw the F-16 making another left circle then heading in the same direction they were going when I first lost sight of them. I didn't see either of them anymore. Did I witness a pilot with some explaining to do?