"If your card still has a sig (because its not updated or you need one for disabilities) "
This is a myth, anyone can have Chip and Signature cards vice Chip & PIN. CardWatch advice is not to use the same PIN for each card. Therefore if you cannot remember several PINs for different cards, and you question the lack of privacy offered by PIN consoles then insist on Chip and Signature cards - It's your choice, it's just the card industry is being economical with the truth.
Here's the latest warning. Picking Pins That Stick:
I wonder what would have happened to the victim if he'd used the same PIN for more than one card?
Get yourself Chip & Signature cards