I lock the house doors, windows, set the alarm and sleep with a loaded musket under my bed. Even if you live in a so called "safe" neighorhood, you never know who's passing through.
As far as locking up my vehicle, it depends. I once went to a shopping mall and when I came back out the side window on my SUV was smashed out. An old leather jacket and a brand new $19.99 dust buster that I just bought was the only think that was stolen. But what was worse was that the idiot numb nuts that broke in bent the window frame on my vehicle, probably with a swing of his crowbar. Ended up costing me several hundred dollars just to get it fixed and repainted! If only I had of kept the door unlocked I could of saved us both alot of trouble...
TCK