Wow! If I could only….! That would be an amazing cure for mental illness.
Most likely I would use it on my son to get him to behave, take his meds, stop destroying things, clean up his mess, do his schoolwork, like himself, be kind to his family members, and so many other things.
I would use it on my husband to get him to do the exercises the physical therapist wants him to do on his own and so he would develop an interest in something besides watching television and contemplating his death.
I would use it on my daughter to get her to clean her room.