No, don’t fret, it’s nothing to do with DaVinci 🙂 No, this particular code is one that helps to keep you safe when near the roads when England are in any form of soccer competition.

• vehicles flying one flag should be treated with extra caution
• those with 2 should be avoided and given a lot of extra space
• when in the presence of vehicles with 3 or more – reconsider your journey.

These rules have worked well for me for the last 2 such instances, and based on recent experiences continue to function effectively.