I agree with what most your saying bobthemagicdragon12, but your claims about schizophrenia are WAY WAY off!!!!!
The statistical chance of someone developing schizophrenia is about 1 in 100 people!
I know, i couldn't belive it!!! I'm doing a joint Sociology and Psychology degree at The University of Birmingham, England, and so I know that this is the correct statistic.
The reason this seems so high to most people is that a lot of people will have a short schizophrenic episode in their lives which no-one else, not even the person, realises what it is. This could include withdrawing from society, losing self-respect for appearance, isolating from others etc. All potential sympoms of mild paranoid schizophernia. This may only last for a few weeks.
It is only the MINORITY who require hospitalisation, in severe cases eg- strong visual/audio hallucinations, complete loss of reality, belief everyone is out to get you etc.
Just thought I'd clear that up.
At the end of the day with regards to mary-jane, as an ancient Greek philosopher said (cant remember his name) - "Enjoy everything in moderation, including moderation itself."