This comment may show my backside and prove just how far outta the loop I am (I was never actually a geek--aspired to be a girlfriend of--yes, that far).... ....aNyWaY.... I assume the idea for the t-shirt came from the book about President Lincoln as a vampire hunter? Which was in turn a direct desendant of the rewrites of the Jane Austin novels (Pride and Prejudice, I think or maybe it was Sense and Sensibilty?--I'd have to look it up) where most of the characters where actually zombies? (I believe they were on the NYT best-seller list for awhile). I haven't read them yet but plan to. If you've never heard of them, you should look them up, it is such a kewl idea.