I am from the state of PA, wanted to know if I need a signed form (notorized, etc?) if I leave my 5 month old baby with a friend for a little over a week, while we take a long awaited family vacation. Someone told me if my baby gets sick and needs medical care, nothing can be done unless I have given my friend "temporary custody"- in some kind of writing. Is this true? what is necessary? Thank you.