Much like toddlers, you can’t really leave them unattended. It only takes a minute for a minor incident to get out of control.
I’m using a Wyse camera and an Arlo camera to monitor cuts while I work nearby, and I watch those streams like a hawk when cutting small items. Knock on wood, I’ve never had a serious flare-up… but if it happens, I’m ready to pounce.
Sorry to hear you had a fire. I bought a Conico Wireless IP Camera on Amazon for $18.65 (incl tax) to keep an eye on mine. I figured if it was that cheap and didn’t work, no big deal. My GF is on the end of a 10’ table, and I usually am working about 3’ away from it in the middle or on the other end of the table, but I wanted to be able to sit down and not have to stand there watching it the whole time. I was really surprised how well it works. Now I can sit comfortable working on my next project or whatever, and keep an eye on it. It’s also nice for the occasional trip upstairs to the kitchen, knowing that I can keep an eye on things. I never leave it for very long though.
By the way - I love your vent gate! Very clever!