[37] If, as I think is the case, the defendant ought to have seen the kangaroo at a point at which he was in a position to take control of his vehicle and to manage the situation, a number of possibilities existed. The kangaroo may have passed across the roadway in front of the vehicle safely, or if it had stopped, the defendant might by perhaps sounding his horn, have caused it to move out of the way. In the event that it remained in the centre of the roadway, the defendant, had he seen the kangaroo earlier and been travelling at a reasonable speed, ought to have been able to pass the kangaroo in such a way and at such a speed as to avoid the need to swerve in the way in which he did which, as I have indicated, generated such forces as to cause the plaintiff to be lifted and thrown out of the vehicle.