21. I will design all doomsday machines myself. If I must hire a mad scientist to assist me, I will make sure that he is sufficiently twisted to never regret his evil ways and seek to undo the damage he's caused.
22. I will never utter the sentence "But before I kill you, there's just one thing I want to know."
23. When I employ people as advisors, I will occasionally listen to their advice.
24. I will not have a son. Although his laughably under-planned attempt to usurp power would easily fail, it would provide a fatal distraction at a crucial point in time.
25. I will not have a daughter. She would be as beautiful as she was evil, but one look at the hero's rugged countenance and she'd betray her own father.
26. Despite its proven stress-relieving effect, I will not indulge in maniacal laughter. When so occupied, it's too easy to miss unexpected developments that a more attentive individual could adjust to accordingly.
27. I will hire a talented fashion designer to create original uniforms for my legions of terror, as opposed to some cheap knock-offs that make them look like Nazi storm troopers, Roman foot soldiers, or savage Mongol hordes. All were eventually defeated and I want my troops to have a more positive mind-set.
28. No matter how tempted I am with the prospect of unlimited power, I will not consume any energy field bigger than my head.
29. I will keep a special cache of low-tech weapons and train my troops in their use. That way -- even if the heroes manage to neutralize my power generator and/or render the standard-issue energy weapons useless -- my troops will not be overrun by a handful of savages armed with spears and rocks.
30. I will maintain a realistic assessment of my strengths and weaknesses. Even though this takes some of the fun out of the job, at least I will never utter the line "No, this cannot be! I AM INVINCIBLE!!!" (After that, death is usually instantaneous.)