HAHAHA wow this is hilarious. you just want to light the city on fire and watch your sims burn and run? lol I really have no help for you, the most fires I have ever gotten to start this way is in Dirty Industry Areas with NO fire protection. and thats like once every 20 hours or so of game play. So I myself have wondered about this. Try playing the sims, putting one into a small room and lighting it on fire if u wanna watch stuff burn, and kill them in the process. Just a idea.