I can attest to this. I've done many trips into the deep desert and noticed many times that if you idle your 4WD while out (taking a whizz for example), often there'll be swarms of beasties on their way to investigate.

There are tons of tricks like this that the average Australian kid (used to?) learn .. another great trick is to take a gold coin with you while snorkelling, and use it to lure octopus out of their lairs .. they find it irresistible. I've had hours of fun with that trick.