For example if we both finish dinner at the same time and I go to wash my hands she'll be standing right next to me waiting for me to finish, and when I finish I'll shake my hands over the sink to dry them off a little before i wipe them with a towel, and my sister will get all mad telling me to shake my hands "in" the sink and not over it, and I always tell her well if the water is splashing you when i dry my hands then don't stand so close. Its every little thing I do like that, and she'll always complain about it. I always defend myself when she complains about what I do but defending myself isn't making her stop. Its like she can do anything, but if I do something it become some big deal. I'm really sick of it, what can I do to make her stop?