Well, I suppose that's technically a legitimate concern - but that's never happened. There are some inherent safeguards in place... at the basic level, the pact only lasts 24 hours, and with some practice it can be terminated at the binder's whim. Additionally, my vessel simply isn't strong enough to fully contain one of these spirits. They lend me but a fraction of their spirit, and it binds itself to my soul...
At any rate, there's no known incidents of anything of the sort ever happening. That would be a violation of their end of the pact.
I know that may seem odd... but it's a bit different than any other sort of binding or summoning. Take a demon, for instance - they will always try to wry out of their summoner's control, and win their freedom. A Vestige knows that they exist outside reality... The idea of them ever returning simply isn't possible. Sharing a bit of our experiences is the closest they can ever get - and they value it more than a king treasures his crown.
no subject
At any rate, there's no known incidents of anything of the sort ever happening. That would be a violation of their end of the pact.
I know that may seem odd... but it's a bit different than any other sort of binding or summoning. Take a demon, for instance - they will always try to wry out of their summoner's control, and win their freedom. A Vestige knows that they exist outside reality... The idea of them ever returning simply isn't possible. Sharing a bit of our experiences is the closest they can ever get - and they value it more than a king treasures his crown.