"The temptation to base a judgment of a person's capacity upon 
whether they seem to have made a good or bad decision, and in 
particular upon whether they have accepted or rejected medical 
advice, is absolutely to be avoided."

http://www.telegraph.co.uk/news/uknews/law-and-order/10653650/Schizophrenic-with-a-gangrenous-leg-allowed-to-refuse-amputation.html 


"People Who experience mood swings, fear, voices and visions"