Hickling estimates he bought 20 packets of Selena Gomez Oreos for the trial, and soon was out in the field in Leeston attaching the cookies along the planks that lead up to the possum traps. “One of the things that’s nice about an Oreo is that you can just drill a little hole through it and just tap it on with a flathead nail,” he says. “People have tried to use Tim Tams in the past, but they are really expensive. Oreos are quite a bit cheaper, and they actually stand up to the rain quite well too, which is a little disconcerting.”

Mate, if you think how they hold up in the rain is disconcerting, you should have a read of what’s in 'em…