Nah they can still get you in your driveway, have heard of someone waking up to a yellow sticker on his car one day lol. Can't dick them for trespassing either unless you are home to tell them to get off your property. Unless they jumped a locked gate / fence to get to your property. As for the drinking, for some reason this came up when i was doing my security course. If you are involved in an accident, go home and have a couple of drinks and the police come knocking asking for a breath sample and you read over, you're screwed even if it was a couple of hours later. Can also be done if you're drunk and sitting in your car in your driveway with the keys in the ignition. Sometimes all you can just do is facepalm lo.
http://www.vicroads....Roundabouts.htm Found that so far for roundabout rules, trying to find something else related to speed and entering roundabouts but no luck yet
edit: http://www.legislation.vic.gov.au/Domino/Web_Notes/LDMS/PubStatbook.nsf/b05145073fa2a882ca256da4001bc4e7/36E852AA5A0D62CACA25761E001F5FF1/$FILE/09-094sr.pdf dunno if anyone can find anything there, i read through the roundabout section and it seems the only time i have to giveway is if someone is already in the roundabout, which TO ME seems that if the speed limit was 40 and i saw no car in the roundabout i can go 40 through it without having to slow down, but if i do that and have an accident i can get done with reckless driving or not paying attention or whatever the hell it's called.