"[SIZE=-1]mental disorder, with or without organic damage, characterized by derangement of personality and loss of contact with reality and causing deterioration of normal social functioning" This is the definition I got for Psychosis - and it seems quite fitting. I was tripping with a friend recently and SWIM's friend seemed to become a completely different person. Does anyone have any experience with something like this? It was slightly disturbing, because SWIM's friend seemed to talk differently and act differently - like he never had before. I would say "hey xxxxx" and xxxxx would look at him and say "yessssss... that is what they call me..... xxxxx" and ignore the question. I would ask again, and xxxxx would say "xxxxx isn't here right now... please leave a message." then laugh hysterically. Kinda strange - anyone have anything to add?