Just because you disagree, doesn't mean the other person is lying
Nothing to do with disagreeing or agreeing. Neither you, me nor onyx are in a position to state what onyx stated about either the nurse lying or about Terri Schiavo being able, or not being able, to form words.
Onyx is lying in saying something as truth or fact that he/she cannot know.
This is different than him/her saying "I don't believe the nurse" or "my opinion is Schiavo cannot form words".
Given onyx' frontal assault ("stop the lies") he/she does not deserve the benefit of the doubt or courtesy.