I have level 3 farming and about 5 farmers for a village of 32, and level 3 farming in a second village with 3 farmers for 28. I left them both on half speed today for about 8 hours. The first village of farmers must have been having a party because they certainly didn't do any farming. I was down from about 1800 food to 30 which quickly went on to 0 as I watched. My second village of farmers were very hard working though and kept the food count at over 2000. Very strange!!!! Oh and then half my scientists decided to wander around worrying about the lack of food. There wasn't a lack of it, a sea full of fish, about 700 crops to harvest, it's just they were all to daft to go get some of it.