This The Funpop fond d’écran contains
grillage and clôture grillagée.
There might also be
rue, scène de ville, milieu urbain, ville, scène, urbain, cadre, mise en scène de rue, and chaussée.
This prank is absolutely hilarious. Replace the mirror in a restroom with a window pane, place a set of identical twins in identical rooms opposite each other and proceed to prank everyone who walks in. :D