You shouldn't have to deal with this when you move out unless you live with small children (under the age of
. In that case I'd disinfect stuff and try to gently pull their fingers out of their mouths. At 13, your sister should be able to control herself
.
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Balance is needed within the universe, can be demonstrated in most/all concepts/things. Black/White, Good/Evil, etc.
All dependent upon your own perspective in your own form of existence, so trust your own gut and live the way YOU want/need to.