Over the years, there certainly have been plenty of ideas that I've had and given up on, but for this one, the only thing that was standing in its way was me doing it - I just had to write it... And then if it didn't happen, it didn't happen. But I didn't want it to be for lack of effort on my part, so I had hunch that it would be a good story and that we would work well together. And it certainly worked out that way.