https://www.youtube.com/watch?v=d7QCl3daK5Y

 Positive energy is essential to survive a hostile creature of that kind unless u have to be neutral so that u may interact with entities which may avoid this pattern for any reason as provided by nature or decided by them. That is a measure and a responsibility as entitled by your own convictions.

U seem to be having a mid to late middle ages euro anglican mentality that also further meddles with what seems to be your protestant to secular background , they are not demons , should what you encounter be true they were once human beings , even if they have been spiritually powerful they will never be accepted by the dimensions of heaven and hell unless play by the rules , i still try to figure whether they are in limbo so called as decided or is part of a natural process unable to understand or no religious authority can properly describe or tell. As for the mentality thing if u have no problem suits me. Make sure you never mess with a real demon though...It is a game of faith for you but a matter of soul and proving their worth to their master 2 them...U calling them is like the fish falling to the nest in its own will...No refunds after u leave the cashiers office...So i heard... Take care... Nice vid.