I saw on some web discussion area a post by an Australian who casually mentioned he killed a spider in his kitchen by tipping his refrigerator over on it.
The other Australians in the forum thought that was a perfectly reasonable thing to do.
So...a place with spiders so big that people consider tipping over a refrigerator a reasonable approach to killing them, or a place with earthquakes.
Tipping a fridge is a bit extreme - you might spill the beer :)
Actually as far as dangerous animals here they are pretty rare in the cities where most people live. I grew up on a farm and snakes there were very common (not too many spiders though). I would run across a deadly snake around once or twice a week except during winter when they were hibernating. I was never bitten, but I did catch quite a few - it is not too hard to do as long as you use a long stick and have a strong bag without any holes to put them into.
It is probably the deadliest animal in the USA too. I have to say I would rather be stung by a bee than bitten by a death adder [1] or brown snake [2].
The brown snake is by far the most dangerous snake in Australia, since it is aggressive, and even though there is effective anti-venom, it the venom kill you quite quickly.
I actually used to fear death adders more. Brown snakes 99% of the time hear you coming and all you see is them taking off at high speed away from you. Death adders on the other hand lie still waiting for their prey to come to them so don’t move. Since they are camouflaged that can be really hard to spot in the leaf litter. When I would go exploring in the bush around my home I would always take my dog and make him lead the way - he would bark and let me know if a death adder was up ahead. Of course there were a very high rate of false alarms (goannas mostly), but I would rather a 100 false positives than have one false negative bite me.