hmm my care came with pre made egg marks on one side
had my VN egged once, right on the bonnet, I went truly mental at the wankers who did it ie I saw red and lost all control and tried to run them over. That was about 5 years ago, I don't get so worked up anymore lol, but carry a club lock in case anything turns nasty.
The only near instance of vandalism I've had so far with the Skyline (touch wood), is a bunch of drunk abos just abusing me at random once at the lights, calling me a white cnt and throwing bottles (a common occurrence, and they tend to throw rocks off the railway bridge at the local cruising spot too), I quickly made sure there was no oncoming traffic and ran the red. Fark getting your car smashed up if you can avoid it.
I tend to avoid groups of teenagers loitering near the road now, and always avoid parking my car for long periods and at supermarkets (much to the gf's chagrin lolz) I understand that in Melbourne that's a lot easier said than done though.