Nothing worse than showing kindness to someone then they rob you, the times i have had that happen! Workmen coming into your home taking little trophy's like rings or other items is sooo annoying i hide everything now, phones etc.
Most thieves appear to be self indulgent people who enjoy damaging other lives to benefit their own. I know it happens out of desperation sometimes, but I rarely see thieves who steal to eat instead of starve.
Almost in all cases, their sense of security.
just about everything except maybe used rubbers