Yes, if it happened to end up near Saturn (or Uranus or Neptune) then that could lead to gas giants flying around in potentially dangerous ways, but there's loads of space for them to avoid one another in - I don't thnk there's any particular reason that the interloper should spend much time near the ecliptic.
(no subject)
Date: 2006-09-11 10:04 am (UTC)(no subject)
Date: 2006-09-11 10:11 am (UTC)