70.

When my guards split up to search for intruders, they will always travel in groups of at least two. They will be trained so that if one of them disappears mysteriously while on patrol, the other will immediately initiate an alert and call for backup, instead of quizzically peering around a corner.
71. If I decide to test a lieutenant's loyalty and see if he/she should be made a trusted lieutenant, I will have a crack squad of marksmen standing by in case the answer is no.
72. If all the heroes are standing together around a strange device and begin to taunt me, I will pull out a conventional weapon instead of using my unstoppable superweapon on them.
73. I will not agree to let the heroes go free if they win a rigged contest, even though my advisors assure me it is impossible for them to win.
74. When I create a multimedia presentation of my plan designed so that my five-year-old advisor can easily understand the details, I will not label the disk "Project Overlord" and leave it lying on top of my desk.
75. I will instruct my Legions of Terror to attack the hero en masse, instead of standing around waiting while members break off and attack one or two at a time.