When I was a kid, "Catch!" meant someone was throwing something TO me. ("duck!" meant something to be avoided was coming AT me.)
As an adult learning to snow ski, the word "catch" combined with "outside edge" meant I was the one about to be thrown. Also learned what a "face plant" is. "DUCK! usually meant a low branch.
Recently I learned that a "catch" can mean that somethings is being thrown AT me. Now the word does explain WHAT happened, but it would seem that thinking "DUCK!" would be more useful than thinking "Catch!" when one occurs.
This learning experience happened on an inch and a quarter diameter of pine.
Learned that some new turning tools come with a coat of clear lacquer on them and it affects how the edge removes wood. Also learned that they don't come sharp. They come semi-sort-of-sharp. Once sharpened like I sharpen my bench chisels a plane irons, they remove wood much faster and easier AND leave a smooth surface behind.
Up to now, it was the tool that was dangerous. Now it's the wood.
There's a lot to learn about this turning thing.
But it sure is addictive.
charlie b