Philo.
Sorry about what happened to your grandson. Churches have to be sure that they are dealing with a demon very carefully; and not just fallen nature or personal quirk.
Sometimes churches get a super zeal for exorcisms that isnt good or based on the truth of a situation.
As for demons as I have said...they are there...and cannot be put away with theory.
If you havent! lived with a life knowledge of their existance, you dont know.
Same with all of you folk.

Sorry guys my computers doing funny things. Im on the wrong thread.