Although, speaking of my absent sense of smell… while burning my dinner on Saturday (haven't quite got the hang of my new grill yet) I discovered to my slight surprise that my nose can at least sense smoke, in that smoke makes my nose sting to roughly the same extent that it makes my eyes sting. So it's not totally inert as I'd thought it was; but on the other hand it still isn't practically useful, because it's not telling me anything that my other sense organs weren't perfectly capable of telling me already :-)