What is the fatal dose of fiber?

If someone were to accidentally eliminate themselves by having to much fiber, how lots grams in a twelve hour extent is potentially lethal?What is the fatal dose of fiber?
I don't give attention to they'd die.
But everyone else would WANT him to because of his farts!
enough to product it impossible to poo.
I don't think you'd die from a direct interconnect to fiber but it may set off a fasten of events in your colon and end in problems.