Back in the 80's my best friends dad just had his Porsche painted and someone dinged his door in a parking lot. He popped the cars hood next to him with the paint chip evidence on his door and took his spark plug wires. This was back when the hood release was in the grill area of old cars.
Left a note on his car saying next time you park next to a nice car watch your door. Oh and I hope you don't mind I borrowed your spark plug wires. Have a nice day.