People like that are going to jump the wrong person one of those times and end up on the wrong side of a skull fracture.
Interesting facts on the criminal mind:
Imagine two scenarios, and by the way, these are not made up.
1. A car is left parked overnight in a city park. In the car are all sorts of luggage cases with various networking and electronics gear. Some of this is in the cases, some of it is in plain sight. Total worth: about four hundred thousand. This car is untouched. Several parking spaces down, a vehicle is broken into, windows smashed. The only item stolen was an iPod Nano.
2. Two laptops, a printer, an eight thousand dollar subwoofer, several thousand dollars worth in network and video cable, four wireless microphones, two touch computer panels, five incredibly expensive security cameras, and a plethora of tools are left in a storage room. An item is stolen. What could it be? A pair of sunglasses.