"It's best not to just make things up." I found this useful advice on the Act party website. It may not be best, but it certainly can be fun. And convenient. The issue of putting a levy on plastic bag use has seen an upsurge in the use of random studies and hair-raising warnings from Act that death and mayhem will follow should we all start to recycle our plastic bags.
It's all about logic and liberalism with Dave. I love wonky logic - it's so creative, yet compelling.
"The question for the advocates of banning bags is this: is it worth causing an extra 20 avoidable deaths per year?" he asks.
According to one study by Klick and Wright, grubby reuse of plastic bags caused gastro issues in San Francisco. Dr Aragon, a public health expert, explained why this study was next to useless in terms of linking plastic bag recycling with, er, dying.
Not that Mr Seymour cares. Cost-benefit analysis never seems to include such things as blocked sewers and species loss either but never let logic get in the way of a good argument.