If
you
fed enough Warfarin to a human to kill him would it cause pain?

Yes. It is a slow and agonizing death, rat or man would bleed to death
from the inside. The fact that very minute doses of poison are used
very successfully in medicine has nothing to do with it's use to kill
something.

Somebody said, "There is no pain involved." and I asked how that was
known.
It seems now that there IS pain involved.

From personal experience, no there is *no* physical pain involved, as I
have
now stated at least three times.

But you haven't consumed enough to kill you ...

Now who's the idiot?

Mary