Vidar's magical box

Here's a description of the contestant's attempt. Someone's probably working on collecting some images to illustrate it.

Vidar brings in a wooden box containing electronics which he has had made. The box has been programmed to open only when it hears Bård say the phrase "Oi, oi, oi, you big alpaca!". Bård tests it first with a much deeper voice, and it does not open. When he uses a higher-pitched voice (as Vidar suggests he has), the box opens up immediately. Inside the box, Bård finds a 50 kroner note (c£4). Vidar ends up winning the task.

(Written by Karl Craven)