My 10 year old could get into the front door with her ID, for which I admonished her for roughing up her ID card. I do not have the problem of locking myself out anymore because I took the door handle and reversed it so you can get in from outside using the regular handle, and out using the knob that locks the door inside. This means that I double lock my door when I am gone.
Yes there have been thefts from "maintenance" type personnel in housing. Not too long ago a family in housing had maintenance done while they were gone and some things ended up missing. Fortunately all their items were well documented and the case was substantiated.
Third, on the stealing subject, what is up with people putting their euro in the shopping carts at the NEX and commissary and taking the carts home. I can't tell you how many I see outside of residences or at cookouts being used as personal item carriers. I yelled at two kids recently as I saw them pushing a NEX cart on the backside of the base. 1 euro is a pretty cheap price to pay for a $150 - $200 cart. I have noticed that some of the carts are abandoned by the dumpsters after the euro is fished out. If you think the waste management company brings them back the the NEX you are sadely mistaken, not to mention that the cost for cart replacement is not absorbed by the NEX, but passed directly back on to all clients