Specifically what Juan told Carlos was "At any moment that you find yourself hesitating, or if at any moment you find yourself putting off until tomorrow trying some new piece of behavior that you could do today, or doing something you've done before, then all you need to do is glance over your left shoulder and there will be a fleeting shadow. That shadow represents your death, and at any moment it might step forward, place its hand on your shoulder and take you. So that the act that you are presently engaged in might be your very last act and therefore fully representative of you as your last act on this planet."
One of the ways you can use this constructively is to understand that it is indulgent to hesitate.
When you hesitate, you are acting as though you are immortal. And you, ladies and gentlemen, are not.
You don't even know the place and the hour of your death.
And so one thing you can do... to remind yourself that not to bother to hesitate is not to act unprofessional... is to just suddenly glance over your left shoulder and remember that death is standing there, and make death your advisor. He or she will always tell you to do something representative of your full potential as a person. You can afford no less.
Now, that's a little bit heavy. That's why we wouldn't tell that to you. We noticed that Juan told Carlos. We offer you an alternative.
If at any point you discover yourself hesitating, or being incongruent, or putting off until tomorrow something you could try now, or just needing some new choices, or being bored, glance over your right shoulder and there will be two madmen there, sitting on stools, insulting you.
And as soon as we finish the insults, you may ask us any question.
And that's just one way that your unconscious can present to you all the material that it has learned and represented during these three days.
Now, there's only one other thing that we like to do at the end of a workshop. And that is to say….
Goodbye!
