In article ,
dgk wrote:

We don't know that drinking charcoal is bad for you.

Um. When a young child eats something particularly inappropriate, and
the parents rush him to the nearest ER, the doctors there will
sometimes administer a nasty charcoal liquid by mouth that, uh,
"purges" the kid's system of whatever it was he ate.

Guess how I know this... (hint: I have NEVER worked in any medical
field :-)