AFAIK, you do get one turn before disorder, the turn the new citizen is added. Therefore, you must scan the F1 screen at the end of every turn. If you use the mood badges, this task becomes MUCH easier. If no preferences are set for the governer, the new citizen will be added to the most productive square. Productive=food+shields+commerce. We may have the governor still set to "emphasize production", which would put it on the best shield square. If there are no free tiles, the new citizen becomes an entertainer. Can anyone confirm these things?