Manual swipe machine - scam warning
I travel to Sydney pretty much every week... and I take cabs to/from Mascot each time. I have met some fantastic cabbys and some real shockers.
However, more than once - I have been warned by the cabby about the "no mate sorry the EFTPOS machine is broken" scam. They claim that the machine is broken, and they need to manually swipe your credit card in one of those plastic machines that uses carbon paper.
Now... when they use a carbon paper machine, the driver has a complete record of your credit card number, name and expiry date. That's enough to make a duplicate. If he uses the EFTPOS machine - he doesn't get a copy of he whole number.
I have been told by cabbies (again more than once) that credit card duplication has happened - in both Melb and Syd - and that you should never allow your CC to be manually swiped.