The specific question was, if you are asked for a specimen, knowing you are not drunk would you provide it? Not if you are drunk would you provide a sample?
If you are involved in an RTA, you can be asked as a matter of routine for a breath sample, (source: Police Interceptors)..
And even then, you say you would provide a specimen if you knew you where drunk, but wouldn't provide your data if you know you have nothing to hide? this is sounding more and more odd by the minute..
There's nothing odd about it. You just don't get it. You're hurpan and a durpan on an entirely different train of thought.
)..