HUSSAM Abdulhadi walks around tent camps and outside hospitals in Rafah, southern Gaza, selling freshly picked red roses to try to comfort Palestinians displaced by an Israeli offensive that has pummelled much of the enclave to rubble. "I am here selling flowers to spread joy among people during the war in the hope that this changes their mood, makes them happy and puts a smile on their faces," said Abdulhadi, who like most Gazans has himself been displaced by the conflict. He said many of his customers bought the flowers for injured family members, for relatives in hospital or for…