Haha fine.
I have travelled a fair amount of the country including the large rainforest sand islands (Fraser & Moreton)
Never seen a croc other than at the zoo, I live on the coast in the middle of the east coast, they are all up the top 1200+ miles away.
Rarely see a spider, probably saw just as many in England to be honest. Never seen a Redback or Funnel Web, Huntsman’s are more common however they can't bite, they are fast as hell though so can make you jump. We have our house sprayed every year which kills any insects/pests that cross any of the thresholds or edges of the house.
Seen a fair few snakes, although never in a residential area that isn’t on acreage, Browns and Red Bellies are the ones to be careful of, particularly Browns as they are pretty aggressive and can do some serious damage.
To be honest, the "dangerous creature" thing is blown a little out of proportion, its nowhere near what people make it out to be. If you really go looking for them you will find them but for 99.9999% of your life you will never see anything. Magpies in swooping season, now that is a different story lol!