While walking through my neighborhood this morning, a single engine aircraft, probably a Piper, flew over at what I would estimate an altitude of 350 to 400 ft. I thought that it was a good thing I was not flying my Phantom in the same area. There are no fields within 5 miles of this location, so he would not have been on final approach. If there would have been an incident, who do you think the F.A.A. would believe? As I remember my instructor in ground school saying regarding right of way, "Don't hit the other guy".