@Syllou Any advertisement in a public space that gives you no choice whether you see it or not is yours, it belongs to you, its yours to take, rearrange and re-use. Asking for permission is like asking if you can keep a rock someone just threw at your head." Banksy.

Le top du top, c'est quand JC Decaux utilise ces panneaux pour faire leur propre pub en mode "ce mobilier urbain [les abribus] est financé par la publicité".