Hi Warren,
When I was in the Army on multi national exercises, we used to have the Yank soldiers watching the trees for drop bears. The ground for "Hoop Snakes" and especially "Kanga-rilla-pigs.
As a teenager I was scared of the dark. I overcame it in the Army. I was exposed to the darkness so much the only thing that worried me was stepping into holes or tripping over rocks.
So listen to good advice, from Rogerg, Ozrob and the others. It works. I used logic as Rogerg mentions.
Cheers Marty