I've came close, luckily I had a fire extinguisher. I did set my tools on fire in the van though, I'm not sure how it happened but I presume it was my blow torch 🙄
I mentioned this years ago on the old forum, but your post reminded me.
I once nearly set fire to van when I moved stuff around and steel wool burst into flames.
I had a cordless drill battery (old type ni cad) lying loose in van and steel wool must have touched the contacts.
Not sure if new batteries still have open contacts, but just something to be aware of.