why? Why? WHYYY???

WHY IS SHE BEING SO ANNOYING AND LAZY!!! im trying to get my annoying sister to help me clean the house like my mom asked and shes doing nothing! she did like five minutes of "cleaning" and now shes playing stupid video games. I have done part of the dishes and Im about to rotate laudry and when the dishwasher is done, im gonna unload it and do the rest of the dishes! shes just being really mean and when i wouldn't give her back the tv remote she came towards me and said "dont say i didnt warn you" and grabbed my arm and startedclawing and twisting it! my shoulders gonna hurt so much by the end of the day- even with my sling off it hurts when i move it too much. Someone kill me now please.