I'm planning to make my nephew cry.
Why would you do that to your nephew?
Because he's always picking fights with me.
You shouldn't be mean to your family members, even if they're combative. Try to get to know your nephew better and maybe you guys could be friends.
No way, I hate kids.
If you can't bring yourself to be friendly towards your nephew, then you should keep your distance from him. Being mean to him will only cause conflict within your family, which will only make life more stressful for you.