The numbers of reported sexual harassments and rape cases in the Czech republic increase in summer time versus winter , despite the late sunset in summer.

The head of Prague's police department (a lady) has claimed that due to some women's dress code in summer,it may provokes and send green signals to predators to harass and even rape those ladies.

Another example I think it was Mexico(not sure) where females have called for a separate public transportation service due to the constant sexual harassment they've encountered. I think they have won their case and got a separate public transportation lines for females only. So pervs are everywhere and not in a particular culture or society, I bet you if someone else had seen this guy flashing himself, probably he would end up in HMC by now. Modesty can't prevent such particular cases , but can help prevent other cases.

Perversion/harassment isn't an acceptable behaviour even if the female victims were naked, men need to control themselves more, but women have to be careful as well. You can't defy basic instincts.