It may not help whatever's wrong with him, but it is unlikely to hurt.
You'll know it's been effective if he starts saying things like, "If it helps to turn your hat around during a poker game, then it helps."
You'll know it has really been effective if he says, "It may be better to be a live jackal than a dead lion, but it is better still to be a live lion, and usually easier."
Bill was a bit poorly today, and it turns out he had a glass (or two) more wine than was good for him, especially with his low body-fat percentage. Learning experiences ...
We don't know what's wrong with him, because she won't introduce him or even show us his picture! If I knew his number, I'd ask him to call my mother and wish her a happy birthday!