Sean, I want to thank you for giving me the best birthday I've ever had. My friend Sully went to the GP in San Jose (I have just moved to Washington State, so I was unable to attend). He knew how much of a Day fan I am, so he purchased a rather expensive card for me (Vendilion Clique), and hoped he would be able to get you to sign it. Which, of course, you did.
It means a lot to me, since the card is very special to me (It's my commander in EDH, I have 7 Unique copies now, and it was one of the first cards I ever owned) and you've made it even better. Thank you so much for being such an awesome guy!