I've recently had an entertainingly obfuscated email conversation with my doctor about sleeping pills.
Obfuscated? The NHS has a spam filter designed to remove emails containing references to pharmaceuticals of the erectile dysfunction variety. Unfortunately the side effect of this is to block legitimate emails about sleeping pills.
So I had to mail him a quick explanation and then things like "The pills you prescribed me..." had to become "The small round things whose name you wrote on a green bit of paper for me...".
If there is ONE PROFESSION in the ENTIRE COUNTRY who might be reasonably expected to have to talk about medication by email and thus have spam filters that let this stuff through, you'd expect it to be doctors, wouldn't you!