Commercial jobs are pretty easily adjustable because they only take a few hours to complete, which is one of the reasons they are a Godsend to the actor.
When I get logical, and I don't trust my instincts - that's when I get in trouble.
The exercise of power is determined by thousands of interactions between the world of the powerful and that of the powerless, all the more so because these worlds are never divided by a sharp line: everyone has a small part of himself in both.