Imp is right. It's common to have drying racks outside especially in a country where the weather is hot - cheaper to dry your clothes. And in places like HongKong where most live in buildings, you sometimes see a decoration of building walls with clothes hanging.
They banned it here, well some buildings, but more for aesthetic reasons than safety/security.
I think it's really just not your luck that of all things that can fall on you from above, it's a falling person. :lol: