After being married for over eight years, I just found this out the other day. When Paul is buying something with a credit card, and it asks for the date of expiration, and say, the card says "10/31/09", he doesn't say "10-09", but "11-09" since that's the day it has actually expired.
Who does that?
Am I the only one who says "10-09"?
Interestingly, the payment is accepted both ways.