If that happened to me, I would've pulled out the small blade i usually carry, and slipped it into his gut as he held me down and beat on me (his gut because i wouldnt want to have to deal with a death, but want him to suffer a bit. Lets see him continue to beat on me with a deep gut wound).
Then I'd either get off on self-defense("I thought he was going to choke me to death sir"), or do some "hard time" in Juvi.