I haven't had a break-in in 30+ years since I moved back to the farm, and most of those I didn't have a lock.
Being in the farm country over there, im sure Dandy Don you probably have the best security system around, a Smith and Wesson and a dog. with those two , you don't need any locks.
and just to let you know, as i have found out, the second robbery which was just my camera a few days ago, turns out the robber is a Canadian. he has been living here in El Nogalito since this past Sept, he is out of money and is going around to his neighbors houses , stealing small items.
I always figured living in a tourist town was to have some risks, so many people coming from all parts of the world, even bad elements travel around. But, I have felt safer here than most tourists towns I have been to, for example, I feel safer here in Puerto Vallarta then by the great barrier reef in Cairns , Australia. ... just sayin that is my oppinion.