This is a question regarding Barbarian's Superstition.
The barbarian gains a +2 morale bonus on saving throws made to resist spells, supernatural abilities, and spell-like abilities. This bonus increases by +1 for every 4 levels the barbarian has attained. While raging, the barbarian cannot be a willing target of any spell and must make saving throws to resist all spells, even those cast by allies.
Would you agree that because he cannot be the willing target of a spell that a cleric using a touch spell would need to make a melee touch attack as per Inflict wounds and that he would not be able to willingly drink a potion because they would know that its a spell.