From up high where I was, you could shout anything you liked at them. I tried. They made me sick, the whole lot of them. I hadn't the nerve to tell them so in the daytime, to their face, but up there it was safe. Help! Help! I shouted, just to see if it would have any effect on them. None whatsoever. Those people were pushing life and night and day in front of them. Life hides everything from people. Their own noise prevents them from hearing anything else. They couldn't care less. The bigger and taller the city, the less they care. Take it from me. I've tried. It's a waste of time.