That's the thing. As much as him and me have always got along amicably, he's got a history of being 'less than reasonable' with the neighbours on the other side (who have since moved..). I've seen and heard how the guy operates, and being honest any kind of confrontation, however diplomatic on my part, could quickly turn into something a bit nasty. And I'm not the type to back down. I'd probably lamp him one if he spoke to me like I've heard him speak to the other neighbours. So, I might be wise just to avoid the discussion altogether, as much as I have a right to pull him up on it.
How much is the going rate for a smooth grill? Might be a good excuse to get that done, I've always preferred the look of the US spec front. With a legal plate of course!