HP is currently running a campaign in the Netherlands to tempt punters to trade in their old printer for a new, shiny model.

As is the local custom, it's set up a website which, among other things, calculates the value of your old machine. As our informant Edwin explains, point your browser here and hit "TAXEER ZELF":

For those of you not familar with juvenile calculator-based humour, here's the gag:

In the circumstances, we really must apologise for the headline of this article. It's clear HP doesn't have any Bulgarian airbags to whip out in the first place. ®