Warn her if u do that once again u will get into a lot trouble<br />
and tell that u have ur eyes on her and the next time she's over<br />
tell her that u have clear evidence and next she will be at the police (even though just don't do that for real) <br />
warn her if she don't listen put it into action
Oh wait. Is rupies money? <br />
You live in Hyrule?
Try recording her on webcam. Can't argue with that.
Are your rupees worth more than your sister?
The above answer is swell.