Peanuts are known by many local names, including earthnuts, ground nuts, goober peas,
monkey nuts, pygmy nuts and pig nuts.
You will probably know them as peanuts... it's not the nut itself that is harmful but the shell. It gives off a fine dust when being cracked and can contain harmful fungi spores. A few shelled peanuts (which my father in law calls 'red skins' - another name for you) - doesn't do any harm.

Hope thats cleared that up for you...
hugs Janie xxx