There is actually a fine art to the act of writing a passive aggressive note.
And this one left on the windshield of a Mercedes by the driver of a Smart car in London gave us pause for thought:Pictures: Supplied
You are very brave parking your nice merc so close to my smart car which I don't give a sh-t about!!!
Three exclamation marks, people. One or two make you look sincere. Four is overkill. But three? That hits the pass-agg nail on the head.