re: Admitting our dangerous (and dumb) mistakes might help others.

You just never know, do you? I was working on my tablesaw one day, fully protected, dust extractor howling pointlessly outside my ear defenders, chips falling harmlessly against the face shield and respirator I wore. All good.
I finished the cut and wondered slightly, even abstractly, why there was so much dust hitting the face shield. Since the saw had stopped I removed the armour and looked around.
There up in a corner in the clear plastic tubes that carry the dust was a small party of shavings mixing it up at an elbow. I took the board I was cutting and knocked it gently.
The elbow came apart and I was covered in shavings, dust and probably spiders. One of the shavings found it’s way into my right eye and I had to wear a patch (just like a pirate, much to Rabbit’s dismay) for a few days.
Yarr, Billy, these be dangerous beasts, don’t cha know, even when they seem ta be sleepin’!