Happiness
 

I tried to create new happiness variants. One of them would really love war and fighting and be rather insensitive to proper losses. They would however get bored and unhappy if no fighting occured during a prolonged period. In order to achieve this I tied a positive "Natural Decrease" in the Happiness file. However this does not work. Anybody knows what might be wrong??
And what does the "Natural Decrease to other races" mean??
Thank you very much for your help.