When one's Debit / Credit / Whatever
card misfires, fails or is abjectly declined for no apparent
reason when being used to make a purchase in any PIN
pad at a retail establishment.
I had just
popped my chip card in the reader and IMMEDIATELY got a CARD DECLINED message. I know there's plenty of funds in there... so... it was just a Card
Fart.
Re-inserted it and all was fine.