It seems that Science has proved we are never alone, but always have our very own companions with us all the time.
The story is here to the effect that we each have a personal microbial cloud about us wherever we go and whatever we do.
Another view is taken of the same story by Science Daily which suggests that we are all our own pig pen.
Given that pigs are now at the centre of British political debate about how our politicians gained their insights into life, it is not good news.
It leaves rather a smell behind it.