Glad you brought that up. Bonaire is the only place I've been to where the car rental company makes the renter responsible for damage to the vehicle if you use the vehicles security features. If you lock your car and a thief breaks the window you're responsible for the cost of the repairs. Every rental agency I've been in has a huge sign behind the counter on the wall and on the counter saying so. The rental agencies are so sick of fixing their own cars from all the petty theft damage that t
he abnormal is the new normal 
Actually, there is nothing new about it and the procedure has worked quite to the benefit of divers. If you observe the recommendations, the worst (and even this is rare) one is likely to suffer is loss of old flip-flops, an old T shirt or a water bottle. Very, very rarely do more serious thefts (e.g., tires) occur.
My wife and I have owned a condo unit at Sand Dollar for 6 yrs. We have been visiting for 5-6 wks/yr beginning the week after our purchase. We frequently gather socially with other owners (and guests, for that matter) on the waterfront for drinks and conversation. Never, in our interval of ownership have I heard a scary story about someone staying a Sand Dollar who was the victim of criminal activity. I have heard a very few stories about folks who returned to the truck from a dive to find that someone had rummaged through the items left in the truck bed. Someone tried to break into a Sand Dollar unit a couple of years ago during a holiday parade, but was scared away. On another occasion, someone stole a truck at night from a Sand Dollar parking space, but was discovered by security and chased away, leaving his bicycle behind. Those are the only two such instances, AFAIK, in the last 6 yrs.
In other words, everyone knows there is crime on Bonaire, but it has never reached a level that caused me to worry. Certainly, nothing like one would find in many parts of NYC (where I had things stolen from a locked car) or Rome (where I was pick-pocketed right out of a zipped and pinned fanny pack being held on my my belly) or Paris (where my wife had her wallet plucked out of her purse), or East Setauket, NY (on Long Island) where my wife's legal briefcase was taken from our car one night while it was parked in our driveway then dumped in the neighbor's lawn.
