In rural areas fire departments tend not to be very busy. Well a couple of bored volunteer fireman in one small town really wanted to fight fires so they decided to burn down some vacant structures around town. Authorities eventually put two and two together and convicted them of arson and off to state prison they went. After serving their time they returned to where they had lived before. Being a rural area, the fire department was always in desperate need of man power and these arsonists were more than willing to help. Necessity being the mother of all evils, the fire department had more man power.