"I die 100 times a day just seeing him like this," said Mr Bakr, as Muntaser fidgeted beside him with two teddy bears. "He is not the same child. He won't obey anything we say. If he wants something, he demands it no matter how it affects others. For a while, he used to say he wanted to become a fighter so he could avenge the deaths of his brother and his cousins. He has stopped saying it now and I don't want to remind him."