Dash to the Dunny

When one is desperate for a toilet a dash to the dunny may be required. But user beware! Old Dunny's are sometimes in disrepair and hiding unwanted surprises!  Another whimsical painting that captures that awkward moment when need outweighs wisdom and one enters "the Dunny"!   Of course, there is no toilet paper but there are red back spiders just waiting to welcome you.  How did the toilet out the back come to be called the Dunny? This link Why is it called a dunny explains.