Informative but predictable. Good info.
The first two I might try but grass? No way, I'd rather walk all night to get home.
If the knots leak over a long distance and if your life is at risk, I would consider filling the tire with dirt/sand if no grass is around.
It would be extremely heavy, guessing 5 kilos, but the tire would hold its shape.
You would have to ride slow since it would steer dangerously but better than walking a long distance through bear country or South LA at night :)
My real world solution one time was to find some plastic bag litter and wrap it around the hole 5-6 times as a patch. It held air for a week, then I remembered about it and fixed the tube.
ET phone home.
I've heard of the grass thing, but not tying the tube like that. Good idea to keep in mind. Hope I never have to use it.
You guys still ride on air?
I just fill my tires with Great Stuff.
Or just bring tubes...