When I didn't had my camera with me, I saw a girl in raging on this billboard. She than took a black marker and wrote: 'Ik ben seksistische plaatjes spuugzat.' (I'm sick of sexually tinted images.).
Click on the picture to see the text. Location: The billboard stands next or near Rem Koolhaas' office OMA at the Heer Bokelweg in Rotterdam.