75. When in RL, you try to find that sound that comes when a turn is ended. (You know that "bump"-sound)
76. You have several spare units of CIV IV, in case if one disc would fail to work.
77. In fact, you bought every single copy the local game store had at the release day.
78. You think the Iraqi war is/was about territory.
79. You actually think Iraq is American, since Saddam, the permanent leader of Iraq, was hung. An evidence that Iraq has fallen.
80. In fact, you even think that Hatscheput is still alive, since "Egypt" still exist.
81. You think Civilization IV is more real than the real world.
82. If you didn't buy every single copy at the local store, you simple killed everyone in the neighbourhood that possessed a CivIV copy. (That is a very bad clue)
83. You have modded, so that all leaders speak with chattish word such as "lol", "wut" and "pwn3d".
84. You actually add several phrases to all the leaders every week.
85. When your wife/housband/girl-/boyfriend said to you to stop playing the game, you actually killed him/her. (Even worse clue than number 82)