This week's theme is "exhibitionism." Most male flashers are meek, quiet men?! And how should you react when flashed?
"Report them to the police." 
„Der Polizei melden!“
Denunciar a la Policía.
Denunciarlo a la Policía.
Prévenir la police.
"Denunciateli alla polizia."
"Denuncie-os para a polícia."