With my 2000 all-aluminum Insight I got into the habit of parking as far out in a store parking lot as possible to avoid people parking next to me. If the parking lot is crowded, I'll park at a nearby store with a less-crowded lot. I've maintained that habit ever since, always telling myself as I make the hike to the store it's healthy to get a little walk in.
However, one time after hiking out to my steel-bodied 2010 Insight I found black truck tire tread marks running up the side, higher than the rear wheel well! That day I was glad the 2nd-gen Insight's body was steel. The tread-marks rubbed off and only a small dent remained. If I had been parked close to other cars, that truck couldn't have blind-sided my poor Insight. I've always wondered what happened that day, not wanting to believe it was just a vandal having what he counts as a good time.