I believes it depends on how heu2019s harassing you and the force youu2019ve used.If heu2019s punching your dick repeatedly with force or taking a hot iron and burn you, out of rage you hit him once and he falls to the ground and he ran to his mummy, you might have a good chance to end in your favor.If you hit him, and he falls to the ground, and then you proceed to kick his back and rain punches on him, then nope, itu2019s not going to be in your favor. You will get punished for the extra hits taken on him or her.If your one punch is so strong it cracked his bone, then it would be rendered excessive and you have a difficult time explaining why you have dealt so much force and itu2019s extremely difficult to end well in your favor, unless the child is like 11 years old, in which you might have a tiny chance.If heu2019s more towards annoying and you hit him because you think heu2019s harassing you, itu2019s not going to end well for you much. If heu2019s making loud noises and you punch him because you had enough, giving him a colored eye, it always is not going to end in your favor.The court might take into account what causes your attack, but you will still get punished, probably towards community service.It largely depends on how he harass you, and how much force you have used.In general, the court would favor the child despite above all scenario.Remember, you can always walked away or only uses defensive force. Thereu2019s actually no good reason to hit a child, unless itu2019s out of self defense/preservation or similar, like a child playfully trying to stab you because he think youu2019re really superman and out of desperation you hit him off.End of the day, if the court make a judgement in your favor, it needs to be fucking good as such case are easily sensationalised by news, general public is going to side the childIu2019m not a lawyer though