I would rather "all in sundry" know we have an alarm, security gates and a safe than no security measures. We have the same valuables as everyone else who comes on holiday. Camera, Passport, Money. I suspect that even the dopey thieves will know this is what they will find in every tourist property. So why come prepared with safe breaking kit to our place when there are so many places with no security grills, no burglar alarms and valuables just left lying about the property?