Guy I was friends with at one time didn't have a car for many years. Lived in a cheap, tiny apartment, made decent money at his job as far as I know, and bummed rides whenever he needed to go anywhere if he couldn't ride his bicycle. Finally gets a car after many years, then leaves it running with the door unlocked (I think they said it was unlocked) outside of a friend's apartment and it gets stolen just a few months after he first got it.
Got quite annoyed with him at one point and basically told him to fsck off, after giving him a ride to the grocery store and he asked to be taken to the one on the other side of town (Same chain) because he knew the layout better. This after already spending 45 minutes or so at the first store.