displacement = course(track.bearing+rnd.real(-2.4, 2.4), distance=2**0.5, origin=w)
displacement.nexttok()
bumpto = displacement.sector()
displacement = course(track.bearing+rnd.real(-2.4, 2.4), distance=2**0.5, origin=w)
displacement.nexttok()
bumpto = displacement.sector()