Sometimes one churns out ideas and something comes out of what the Americans call ‘left field’ and there it is. A five minute sketch that seems to work, or does it? This is the sort of idea that is like a seam of coal.You can dig out loads of variations on the same theme and they might all be wrong and be just very poor grade nutty slack that won’t engage anybody. That aside it’s worth lighting a match and trying it out, I’ll never know.