[Brooklyn Kid]

http://72.14.207.104/search?q=cache:jKpGeoLpRgYJ:psychiatry.mc.duke.edu/Residents/substance.html+marijuana+induced+psychosis&hl=en&gl=us&ct=clnk&cd=2

If you Google "Marijuana induced psychosis" you will find thousands of entries. I'm sure you could find more if use other keywords and you want to take the time to do the research.

[The Red Zone]

psychosis is quite a broad term. it can apply to the harmlessly wacked out as well as others.

[Ken H]

If you Google "Marijuana induced psychosis" you will find thousands of entries.

If you Google stolen + kidneys + ice + bath you get tens of thousands of entries.

Not that I'm doubting the widespread theft of kidneys, mind you. It nearly happened to me once, but fortunately I was able to fight off my attackers before they could make the incision.

[Know your rights]

Your original statement was "If someone has a predisposition to a psychotic illness, such as schizophrenia, use of drugs such as cannabis may trigger the first episode in what can be a lifelong, disabling condition." Now you're telling me about a condition that "generally resolv[es] within a week of abstinence." You backpedal faster than Lance Armstrong forepedals.