You have to be careful about trespassing in South Australia.  S.A. Water are serious about protecting their property!  Saw this big Kanga out near Mount Bold Reservoir the other day.

Bad Ass Kanga at Mt Bold

Kangaroos are well known for their strength and their boxing prowess.  I never thought they could be trained for this though?

Mean and lean, and I stayed very much on my side of the fence.