I remember as a child that if we were bitten by a spider, the doctor told us to catch it and take it to the hospital for proper ID (using the wrong antivenom was said to be as dangerous as not getting an antivenom). As someone now living in Canada and their reaction to the idea of living with spiders and snakes, I just realised how implict it is that Aussie kids are expected to be able to kill/catch the spider that just bit them and take it to the hospital. Was a nice little chuckle.