Rich,
You must live in a leafy backwater village! When you live in birmingham, you NEVER go to bed with the door unlocked
i currently live in one of the lowest insurance brackets in the country, the sufoolk police constabulary head quarters are round the corner, its pretty safe round here. we lock up at night etc and our door is pretty solid. but yes sleepy backwater housing springs to mind.
i did used to live in coventry in possibly one of the highest insurancve brackets in the country at the time. where you used to dismantle everything in your car, leave the glove box open and empty, and use 2 crook locks. we actually used to leave the cars unlocked. saved them damaging the locks. they could get in see there was nothing to nick and leave the car alone (they weren't the best thiefs, so 2 crook locks were generally enough of a deterant.