I actually have a couple of Gaiman-signed items floating around the apartment already, thanks to my globe-trotting and very generous (He had them dedicated to me, after all!) husband. Peculiarly, I also have a chapbook written by Neil Gaiman, but autographed by Margaret Weis. This happened because Dean spotted the Dragonlance author while wandering around a convention, but had nothing on hand other than Gaiman's On Cats and Dogs (and was not enough of a Weis fan to actually buy a copy of Dragonlance, having read it already). Hence, my copy of On Cats and Dogs bears the curious notation "I am not Neil".
Well, sugar, few of us are.