With respect, I wouldn't say that at all. Having everyone all happy-happy-joy-joy is not likely to make for a lasting comic, I agree, but 'narky and abrasive' is not something I would say is a necessity. See, the thing with abrasiveness is that it ABRADES, and just speaking personally, a sandpaper-and-razor-blades personality like Damien is not my idea of a necessity for a book. Damien ticks me off; he may not tick YOU off, and that's fine, but the fact remains that Jason Todd got KILLED BY THE FANS for being waaaaaay less abrasive than this. That should say something. I mean, I see what you're getting at, but I would say that a grouch, grump, cynic, or acerbic witty type is far more necessary than an abrasive type, for the simple reason that there's only so far that you can go with a person like that.