A 14-year-old girl has been jailed for four months after admitting punching a pensioner in the face, leaving her with a black eye.
The girl, who cannot be named, hit the 87-year-old great grandmother called Marion, while they were travelling on a bus in Croydon.
The court was told the incident occurred when the girl boarded the bus with another female, but refused to pay the fare.
After a row, the victim stood up to leave the bus because she did not want to be delayed and lived nearby.
The court heard that the defendant laughed, and when Marion said that it was not funny, the girl responded by punching her in the face.
The victim suffered bruising and swelling to her left eye and was taken to St Helier Hospital for treatment.
The judge gave the defendant the maximum possible detention sentence for her age as he sentenced her to 16 weeks in prison and training for common assault.
She will spend half the time in detention before undergoing a rehabilitation programme.
Speaking after the sentence Marion, who was travelling on the bus to see her son, said she will carry on "plodding along" despite the attack.
She said: "I am glad she's going to be punished. She can't go around punching people. I was unlucky: I couldn't duck. I've never felt pain like it.
She added: "I am not going to pack up going to see my son because she punched me in the face.
"I'm going to carry on plodding along."