Creed:

This tutorial is a safe place to take risks:

a supportive haven from the professional restrictions of your business.

No one is expected to be funny here. If you are, fine and good.

What you are expected to do is show an understanding, then mastery of the concepts taught.

Self-evaluation will be discreet:

Not even Jim will know if you make a little mistake now and then.

In learning these theories, it is expected that you will take risks you would never dream of taking at work or in front of family and friends.

The would-be comic should feel free to tell that joke which only worked once in a very private conversation.

Maybe nobody's laughed at it since.