Nathaniel, from Honor Oak, near Lewisham, said: "The man showed me the gun. I was very scared and was in the corner shaking. He took the £25 present given to me by my gran." His mother Sam Dias, 37, said: "My son said he was crying as the gunman searched his pockets and nobody did anything to help. Nathaniel and I just want this man off the streets. The next time he does this he is going hurt an innocent child."