Customer: “Can I check out books?”

Me: “Do you have a library card?”

Customer: “Yeah.”

Me: *checks out books* “Okay, you’re all set. These are due back January 15.”

Customer: “But that was 11 months ago!”

Me: “January 15 of 2010, ma’am.”

Customer: “What if I return them NEXT January 15?”

Me: “Then you would owe $365 in overdue fines, ma’am.”

Customer: “But it would still be January 15!”