I'm with Gareth Morgan when it comes to cats.
I should qualify that. As a cat owner myself, I don't agree with some of the economist's stronger comments about the felines but I do share the view that, left to their own devices, these pets are born killers.
Mr Morgan learned last year just how attached people are to their pets when he launched a website called Cats to Go. The website called the animals sadists and serial killers and featured a photoshopped image of a kitten with red eyes and devil's horns.
His solution, which perhaps reflects an economist's logical view of the world, is that they should be phased out by stopping people from buying them and not replacing them when they die.
The idea outraged pet owners but the fact is much of our native wildlife now only survives on off-shore islands that are free of introduced pests. Cats are not entirely to blame. Introduced pests such as stoats and rats also feast on our bird life but the threat they pose to wildlife is recognised through pest control programmes.