Val E. Cummins wrote:

> There are two times in a diver's career when they are extremely dangerous
to
> themselves.

> 1. When they have about 20 - 30 dives under their belt and THINK they know
it
> all...

> 2. Just after becoming instructors when they KNOW they know it all...
<grin>!!!!

Fortunately, I skipped number 1.  I had been diving for 7 years when I got
my first card.  I was already way past thinking I knew it all.  I also
managed to dodge number 2.  By the time I got my card, I already knew I
didn't know it all.  Fortunately, I got through phases 1 and 2 while I was
still young and bullet proof.  Somewhere along the line, I lost my
invulnerability.  Must have had an unnoticed encountered with some
Kryptonite

You missed two:

3. When they've been diving for so long that they know they don't know it
all, but have become so comfortable with diving that they forget to think
about what they don't know.

4. When they get so old, they can't remember what they don't know or why
they should know it in the first place.  Hopefully, none of us has made it
to this point yet, but some of us are working on it. 8^)

Lee