I would laugh at their ignorance.
Nothing.
nothing
You would have to leave him a voicemail because he is not going to answer.
you will develop a condition called spermicidaloptics
Demons are what you call entities identified with Satan. The opposite would be Angels.
No--if he is stupid enough to do what he does how would he know that and beside God made Satan
Unless they out and out tell you, one would never know.
if they die, it's called suicide. If they dont it's attempted suicide // they would have a bullet in them
Demons, if so desired by an individual can be called upon to take over their bodies. For this to happen a person would have to be totally evil and be willing to serve Satan, have him as their master and to be ready to accept the consequences of their actions. Remember, Satan does not reward for loyalty anything that is of worth.
A vision is a day dream or thought of either something a person feels is about to happen or of something that did happen (the latter is called a flashback).
Someone would have to invent them
they would have to go to court