This came up on another thread recently, but I'd like to explore it deeper. In that thread I argued that the narrative tone and language must reflect the tone and language of the MC, as they are one and the same, but somewhat hypocritically I find myself neglecting this rule. When I write dialogue I find it very simple to write with a tone and style, but when it comes to narrative it's almost like I put on a 'telephone voice' (I hope we're all familiar with that idiom) and speak in a far more proper and elegant way. One example is that my character would never say the correct, "Oscar and I have already told you..." It would be "Me and Oscar have already told you...", but in the narrative I have to force myself to use the latter because it sounds so off. Is this a rule which shouldn't be broken? Can you have a 1st person narrator who speaks more eloquently that the MC? My switches are never extreme (it's not like my MC has a thick accent of any kind - it's a generic, nondescript semi-northern English accent) so it's just the odd little things, such as the 'Oscar and I' / 'Me and Oscar' conflicts that pop up occasionally. Thoughts?