So when I was turning my first bowl there was a time when the tool had a splat of something on it, I stopped the shaping and saw that it must be a worm. Is it common to behead worms when turning? It was kinda gross, but I marched on anyway. (After saying sorry to it).
The question is, how do you know what wood not to turn? how much rot is to much? And if you turn a piece that is very brittle is there a way to stiffen it up?