yes, really!! it was a typhoon, 3 of us watched it for at least 6 minutes trying to keep "down" to the speed of the [unknown type-the typhoon being much more interesting] light aircraft which was plodding across the sky. The first time we actually saw the full circuit [we'd heard the racket coming from the west for some minutes earlier] we thought the jet had actually not seen the light aircraft as it was slightly below and in front of it, but it became apparent that it was trying to circle the small plane and we watched at least 3 further "cicuits" made by the jet round the small plane.