[Tony moves his hand off Joss' shoulder as soon as the boy reacted so negatively.]

Listen to me, Joss! This is really damn important. I would never let someone take over your mind for any reason. I'm hearing you and you get the final say on this, but this isn't the same thing as what you probably experienced. It is only to make the emotions easier to handle. She's used it on me before and helped me out of an anxiety attack. I wouldn't suggest this if I didn't trust her.