"Dave Plowman (News)" wrote in message
...

I'm also teetotal, but a recent blood test for a medical showed small
traces of alcohol. The explanation from the doctor was - as I remember it
- the one I gave earlier. I suppose it could have come from mouthwash,
though.

You don't need to worry.
Its virtually impossible to be teetotal, just as its virtually impossible to
be a vegetarian and is impossible to be a vegan.