I'm a dentist, and an older colleague of mine once said, "your patients don't know ...., and their family, friends, and neighbors don't know double ....."
This was in reference to patients often saying stuff like, "well, my friend said X", or "my brother told me Y" about various things they have no business pontificating on. And then they look at you like you're a ..... for thinking otherwise. So many people today act like they are experts about everything (especially with the advent of the internet), and in addition are so quick to believe any bull.... story that falls into their lap.
And then there are the experts. Or "experts". Even though the doc in LowThudd's situation didn't say that VG caused the stroke, it wouldn't surprise me if he did. So many medical professionals today (MDs, dentists, nurses, etc.) that I come in contact with are under so much pressure (be it self imposed or otherwise) to have an answer, they'll talk out their asses before they'll admit they're wrong. I see it every day, unfortunately.
Even in today's increasing reliance on science and evidenced based medicine, so many studies are funded by drug companies, product manufacturers, and what have you. Everyone seems to have an agenda. It's very difficult to know who and what to believe.
It's good to be on a forum with a group of generally open minded people. It doesn't happen very often these days!!!!