Personally, no. When I was a teenager, I lived in a small, country town. Long story short, the local plumber was shot when he stopped to help a young woman broken down on the side of the road. She and her boyfriend (who had been hiding in the ditch) were on the run from another state.
But thanks to technology and my trusty cellphone, if the person looks stranded or panicky, I can always call for help and give the location.