Do you know someone who has abruptly stopped eating baguettes? Replaced their Camembert with falafel? Swapped their beret for a burqa?

They might be a terrorist according to Stop-Djihadisme, a website set up by the French government as the anchor for their newly-launched £40 million online anti-terror effort.

The chart above – which Guido has helpfully translated into English – aims to give parents who are worried their children might be becoming a bit jihadi, a list of the top warning signs for which they should be looking out.

Or, if Boris to be believed, they might just be blowing one out, rather than one up.