How to stop burgulars?

barbed wire on the top of the fence, in Brazil they embed broken gl in the top of their stone or brick fences. A security camera. A guard dog. A bear trap? A cactus fence on the outside. Leave a pack of cigs (pee on them first) attached to a trigger to set off lights, camera, siren. A trip wire to set off an alarm inside your house. For starters, at least.