Self defence art.
Then we got pulled over by the cops, and got a good laugh.
They ran my licence plate through their system and decided they needed to ask me some questions.
They wanted to know the story behind my license plate. I didn't know what they meant so I gave them a strange look.
Then they told me that my car came up as a John Deere tractor in their system, so they wondered how I would explain that.
Told them that my car had norwegian license plates. Problem solved. :-) So there is a John Deere tractor in Denmark with the same number as mine.