Oak: Hehe. Growing up with my mother after my parents divorced when I was 10 or so, I was designated the handy one. Didn't take much but I changed lightbulbs and fuses, sawed down trees and even started using a chain saw at some point. I had no idea what I was doing, but then, neither did she. Not many tools around there either. Now we have enough to build a helicopter with.

I had heard vaguely that rags could self-combust, but I seriously didn't think they'd do anything but smoulder a little, and even then I thought other stuff like terpentine was the most dangerous. It turns out linseed oil is insanely inflammable, and oil-soaked rags cause fires every year. Luckily for my BIL this is something most people don't know much about, so his insurance company was understanding. He had made an effort, after all, and not just stuffed them in the garbage or left them lying around.

Poor guy. Not much fun having to go move in with your parents for months on end instead of a lovely new apartment, at age 40.