I avoid parking my shiny, scratch and dent free SC in parking lots. When I've no choice I'll park way out where there are a lot of empty spaces.
I'll, of course, try to park where I'll have empty spaces on both sides of me. Even doing that, I've returned to my car on several occasions to find some jerk parked their beater next to me, even though they could have picked any number of other spaces.
Then one day, I was about to park in a lonely space and saw, not far away, a very expensive newish car, obviously parked out in left field for the same reason I do.
So I thought to myself, hmm...and pulled my SC into the space next to it on the car's passenger side, leaving plenty of space, which was easy because the car was properly parked in the middle of its space.
It had dawned on me that if I parked there, my driver's side was protected and his passenger's side was protected from some inconsiderate jerk pulling in and denting that side of our cars.
I figured, I'll take the risk that the driver of that nice car wasn't an idiot who would take offense and key my nice car if they returned to their car before I did. He wasn't. When I returned the car was gone and mine was unscathed.
So, when I find myself in that circumstance, that's what I do and haven't had any problems. Actually, there's been two occasions where I've returned to my car when the other car was still there and a third nice car had taken one of the adjacent spaces, one of those times adjacent to my SC. I guess the other driver liked the other car better than my old Porsche.