I can't remember the last time I locked my car here. When we travelled down to Vegas last year, I couldn't get back into the locking mode, even though I knew we probably should, I just kept forgetting. Our car was packed to the gunnels. I suppose we were lucky, we had no incidents.
I always get a chuckle out of my sister when she comes to visit. She has one of those lock over the steering wheel things. (oops...I forgot to add the part that makes me chuckle.....she even locks it when it's in our driveway)