'That's brutal violence on a defenceless person, and quite unnecessary, declares Sophie, and she pulls with an audible tearing sound at the hair of the man lying in an untidy heap on the ground. What's unnecessary is best of all, says Rainer, who wants to go on fighting. We ageed on that.' It is the late 1950s. A man is out walking in a park in Vienna. He will be beaten up by four teenagers, not for his money, he has an average amount ? nor for anything he might have done to them, but because the youths are arrogant and very pleased with themselves. Their arrogance is their way of reacting...