My advice on this.Get your self cctv and record every night as I do.A few Christmas's ago on boxing day night I had some knob trying to set fire to a car in my front yard.There were three cars all next to one another,one was only ago 3 years old and had just been filled to the brim with fuel.Another one had a gas bottle in the boot.My house would of gone up with my mrs 2 kids and me because the cars were only about 3 feet away from the front door and window.I came out and got a bottle of burning white spirits from under car with the g bottle in the boot,slightly warm faced and shorter eye brows later because it flared up I threw it in the street and managed to put it out.The end result was 7 years jail for the little fag,no bashing (yet) and all thanks to a cheap £100 camera.Get one or two fitted