An interesting social experiment.

Walk into a doctor's office, preferably a psychiatrist, but a family practice doc is fine. Tell the doctor that an invisible being who is quite powerful, actually all powerful, is telling you to do things. You believe that you're an instrument of this invisible being's will and must do as commanded. When you leave the doctor's office you're going to destroy evildoers wherever they may be. You will do whatever it takes to get them and as far as you're concerned, the doctor has only two choices: take your side or the side of the evildoers.

Will the doctor:

a. Call the police and/or psychiatric crisis services?
or
b. Write you a prescription for an anti-psychotic?
or
c. Say "I'm with you, Mr. President."?