[namaemuta]

First, it was never stated to do that from a balcony so how would have known that the person to whom it was suggested? But leaving that aside, can you grant me for sure that there won't be any problem? for every place in Barcelona? what about if they people making noise aren't Barcelonian? what if they are too drunk and make even more noise? what if they recognize the balcony from where you screamed at them and start to throw you things as retribution? or ringing at your door? The possible developments of that situation are so many that you can't lightly ignore them, specially when it's another person the one who is going to be in that situation.