Pyromaniac Trait

There is a hidden trait in Sims 3, that you can only get if you marry a firefighter and have a baby with them. This trait is called Pyromaniac. Whoever has this trait will occasionally set things on fire, ruining them, but giving the Pyromaniac a mood boost. Pyromaniacs can also turn normal fruit into Flame Fruit, which they get more mood boosts from eating.