[quote=@Vilageidiotx]It isn't a bad idea to ask somebody who is picking up an awkward character to thing about what they are doing.[/quote]

It's not, but, if I'm convinced they... aren't the sort of person to think about what they're doing, then I don't think they're the right player for my game anyway. If somebody is going to pitch an awkward character, I kinda expect them to qualify them with a 'would this sort of thing work?', rather than just assuming that whatever curveball they've thrown me is definitely cool on its own terms.