What if I told you I want to beat my sister in front of my family?
Are you serious? Why would you want to do something like that?
Revenge for how she treated me.
She's your sister! That's no way to resolve your conflict with her.
She needs to deserve a beating.
That's pretty harsh. Whatever your sister did, you have no right to put your hands on her unless you're stuck in a corner and she comes at you with a knife. You two need to sit down and have a respectful, non-aggressive conversation.