text: what should i do if my sister keeps coming to my room and my door has no lock on it please tell me what to do? she's 9 once i gave her 10 dollers for to get out and i dont know what do i feel like socking her but i can and my door does't have lock  i tried my best but i can take it anymore it aways every day ppppppppppppllllllllllllllease ??????????????????????!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!111 why dont you get yourself a pet dog (or some other freaky pets) which would probably scare her off.