The Hero and The Time Lord

So I saw at least 2 Doctors while I was at SoDakon: The Tenth Doctor (I kid you not, he could pass for David Tennant.) and the Eleventh Doctor. They ran into each other at a panel and stayed in character so well! The Tenth Doctor had to leave the panel to avoid a "time paradox", but the way he left was so comical! I found him later wandering the dealers' room; the poor guy had to take 6 or 7 pictures in a row when I first entered, so I decided I'd wait to ask him for a picture. As luck would have it, I was getting some money out to buy something (I think it was my "I'm the Hero!" button and (ironically) my "10 is my Doctor" button.) when my Tenth Doctor sonic screwdriver pen fell out. I heard a voice above me say, "Oh that's an imitation screwdriver." (or something along the lines of that) and I looked up and saw him. At that point I became clumsy; I kept loosing the top of the slider switch! And he was like, "See? I told you." Anyways, after I calmed down, I asked him politely for a picture. His buddy said I was the 45th person to get a picture with him. ^^