Our home is on the 12th Floor of the building and sound travels upwards. My voice will not carry to them and it is futile to even try and call to them. I would only succeed in disturbing my neighbours who, God knows, might think I was in trouble and call the police. There are street noises and music from an outdoor festival some streets away.
I pluck up courage and call 911. The Dispatcher assures me that the police will be along shortly and take my name and credentials. Ten minutes later the police arrive. My phone rings and it is the officer asking if the youngsters are still on the roof. From my balcony I tell Mr Policeman that I can see him, he waves and simultaneously he sees the rooftop revellers. He walks around and then calls to them. He shines a spotlight on them and all scurry and disappear to the rear of the home (they used a ladder)
The Officer knocks on the door of the party house and chats. There are no arrests, no injuries and the police go on their merry way and peace is restored. I breathe a sign of relief and give thanks.