@centrox,
<laughing>
Your guru comment reminded me of a situation - at the end of 4 years of landscape architectural studies - we had a guru in to learn-us-up on how to write landscape arch business letters.
By that time, I was 44 (the program took older people with prior degrees) and had worked part time for several years for major l.arch companies, one of them among the top three in the country and another very well regarded locally. Not everything the guru said was b.s., but quite a bit didn't apply, one way or another.
I saw their letters: in the first group, I was a beginner, even helping the secretary file, seeing a lot of their business letters, but also mapping properties, a fun job. In the second, I rose in the firm and boss and I were later long time colleagues. Re the earlier guru, being a grown woman, I didn't snort or roll my eyes but did have some mental chuckles. I don't blame the guru exactly, as she didn't know our businesses. We had for ordinary property design projects, including small, clarity for all, not scary for people to sign; some jobs, lotsa paper. For some jobs, a handshake, followed by a page or two; the handshake was the key there.
I have never been sued. Probably too late now.