Huh? Really? What idiots! Then again, you know, it's not any different from any other place in the West. You can find jerks everywhere. I would say that men here are generally much more reserved than back home in the Mediterranean! Catcalling, following, stalking, groping even are all too common there, unlike Qatar.
But that wasn't what I was talking about. These buffoons would probably react the same if you wore an abaya, too. It's not because of the clothes you wear, it's because of their poor imagination and lack of manners.