Kerberos, a la Shakespeare

I just read an excellent kerberos primer in the form of a play, full with Dramatis Personae and Scenes. Athena and Euripides exchange thoughts on open network environments, and validating identities. Identity was relevant back then just as it is today...here's an small excerpt:

Euripides: Your workstation system sounds really good Tina. When I get mine, you know what I'm going to do? I'm going to find out your username, and get my workstation to think that I am you. Then I'm going to contact the mail server and pick up your mail. I'm going to contact your file server and remove your files, and--

Athena: Can you do that?

Euripides: Sure! How are these network servers going to know that I'm not you?

Athena: Gee, I don't know. I guess I need to do some thinking.

Euripides: Sounds like it. Let me know when you figure it out.