Clever Advertising ?

"Caution: Wash your hands properly after applying oil on head, to avoid excessive hair growth on your hands". Saw this warning in a print advertisement for an Ayurvedic hair-oil.

Either it is some clever advertising or this one is the real deal! I have never seen such a statement in any other hair-oil advertisements, though it makes super sense to be present in every one of them if they really do what they claim. Or is it that the other ones are precisely engineered to affect only the hair on your head? Quite unlikely.

I know this one statement is no guarantee of the authenticity of the product. But taking it on face value, what if I accidentally apply some oil on my forehead or neck? Now that is scary (hairy?).