Glowing sphere makes figure eight around two people.

1st off the shape would have been a sphere of light. My friend and I were standing in my parents backyard (I was a junior in high school at the time). Behind my parents house was a park. The two of us were smoking and talking. Out of the corner of my left eye I saw a ball of light perhaps the size of a basketball raise up over the fence, I turned quickly to face it but all I saw was the trail of light it had left behind as it came towards us. I looked back towards Adam, his arms were raised above his waist level with his palms facing down and he was looking down. I looked down and I saw the trail of light this sphere had left behind as it made a figure eight around us. We are not sure if it made the figure eight around us once or twice. We think it shot across the yard after that and left over the fence towards the park (the same fence it entered the yard over to begin with). The object was moving so fast, it was really something else. The entire event took 2-3 seconds. This is TRUE.
Date of incident may be approximate, although the witness does not indicate that fact.  PD