[Pentegarn]

In large quantities.

But by all means keep ignoring that part of that statement.

But for the love of God, at least be consistent. If your stance is that it is to be avoided if it can ever be poisonous (as you seem to be arguing) then apply it to everything.

No water

No breathing

No pretty much anything

Because you see, too much of anything is a bad thing and therefore must be avoided.