This link goes out to all the naïve people (in my opinion) out there who think that signing their credit card chitties is far more secure than the new Chip and PIN and go about telling the world that it's a silly invention. Excuses such as my signature is far more unique than a three in 9999 chance are just guff.
Oh yeah... the link... The Credit Card Prank. Basically it's written by a guy who's signed for things (and got away with) using random names and images and the like - things that look nothing like his signature!
Of course if somebody knows your PIN and has your card then you are doomed. It's all about keeping you PIN safe - and you can keep it much safter than your signature anyday!