"Cane Toads: An Unnatural History" still ranks as one of the funniest movies I've seen. Don't get me wrong: in Australia's tropical North, cane toads themselves are no laughing matter, especially among despairing conservationists. This short film stands as a memorial to human folly in importing the beast from Hawaii in the first place to deal with a sugarcane beetle which in the event it had zero impact on, preferring to lay waste to the local fauna instead. It is also a monument to human eccentricity - less about the despised, amazingly opportunistic cane toad than the reactions it has inspired among the human populace. I still treasure the memory of the local resident who wanted his town council to erect a memorial to the outstandingly ugly amphibian in the main street - presumably on the grounds that nobody could think of anything else worth memorialising there. (Inexplicably, his visionary proposal received scant support.) Overseas viewers may not appreciate that to other Australians, the movie's eccentric cast of characters came as no great surprise. North Queenslanders actually take some pride in being a little different. I'd like to think that the lesson has been learned, but the news that ravenous 400-lb carp are being released into a Texan lake in order to deal with a water weed infestation gives me no confidence.