The scum that break into cars really do need fingers cutting off - If I was in charge of crime and punishment I would proper draconian on their ass.
I had mine broken into about 4 months ago, when parked on my drive, which is overlooked by 6 houses. They were either very brave or very stupid.
They started by ramming something down the side of the door handle to try and prise the whole door handle assembly out (they had obviously read that this was a weak spot on Mk I/II's and thought VW hadn't changed anything in 25 years).
With that not working, they then moved onto the boot, and tried exactly the same. When this didn't work they attacked both rear 3/4's, trying to lever the whole window assembly out of the car (on both sides!). This didn't work, but they did manage to leave approximately 10 dents on each quarter panel all the way round the window, where they were obviously levering against the car with a screwdriver.
Finally they decided they'd break a window, at which point the alarm did it stuff (finally). They ran off empty handed and my insurance company was handed a repair bill for a few quid shy of ?3k.
More importantly I was without my car for 4 weeks, which was the hardest thing to swallow. I have now removed the one (small) sticker I had advertising I had some quality stereo gear in the gear, never play my stereo loud anywhere near my house, and I always drive fast enough to ensure I'm not followed home (great excuse!!)