i want to knock her on the forehead so i can share this moment with my sister , alone , but of course i do n't . you shouldnt came the quiet voice from the sofa . `` oh , leave off being such a child . '' `` we used to do that a lot . '' the water came in under it and pushed it right back up at me . excuse me , oh i see , well of course that cant be ruled out , but why do you raise the issue ? 