As you ride in the Métro there are a whole series of these "improve your English" posters.
This particular one urges one to "treat your English" and to "stop the massacre" of English.... avec une jolie infirmière, bien sûr!
So, like a tourist I had a big grin and snapped a photo! Well, at least I was not talking loudly and wearing white tennis shoes! This post is for Virginia who is studying her French!