So lately I've gotten in the habit of asking for $2 bills whenever I stop at my local branch and, if they have any, I get $20 worth to spend during the week. Of course, I always check for collectible serial numbers and the like, but I'm really just getting them because it's fun to spend them.
Well, today I stopped by at lunch and asked the teller if he had any. He reached down and pulled a few grubby-looking notes from his drawer and said that he only had three of them. "That's OK," I said, and as I said that I noticed that one of the notes looked a little.... odd. Before I could get a closer look, though, he said he was going to check to see if any of the other tellers had any more.
And so I waited. And waited. And waited...
He finally came back with an envelope stuffed with crisp new Series 2009 bills and started peeling off ten of them for me. I had to interrupt and ask if I could have the the three older notes he first had and then just seven of the new ones. I had a moment of panic thinking that maybe he (or one of the other tellers) had decided to keep the "odd" note for himself, but fortunately he still had his original three notes and added them to the pile.
OK, so it's not in the best condition and probably isn't actually worth much more than face value, but I was still totally chuffed to find out what the "odd" note was:


I just stuck it into a currency sleeve and it's headed right into the safe...