Know Khomeini Shiite:

Clean Hashish
Wine or any other thing that can make a person drunk, if it flows by nature, is unclean. And if like bang and hashish it does not flow, it is clean, even though it could turn into a fluid when mixed with something else. Guide #111

Enmity with 12 Imams?
If a Moslem insults one of the twelve Imams or has enmity with one of them, he is unclean. Guide #110
Unclean [Najes] are filthy.

Non-Moslem kids are Unclean
If the father, mother, grandfather and grandmother of a child which has not reached puberty are infidels that child, too, is unclean and if one of them is Moslem the child is clean. Guide #108
Infidels [Kâfar] are those who do not accept the prophethood of Mohamad.