Some background: I tripped HARD on LSD before I really ever started smoking herb. I got overt flashbacks whenever I smoked herb during my LSD taking days, which have been over for about 15 years. Also, at about the time I started seriously delving into drugs, I was diagnosed as bipolar and, later, as schizoaffective. Looking back, my drug use was to blame for 90% of my psychotic symptoms, but now I have been taking anti-psychotics, specifically Haldol, for so long that if I try to quit I immediately can't sleep and my brain goes into dopamine overdrive mode. In other words, I am effectively dependent on the Haldol, although without any drugs I really don't think I would ever have been diagnosed with any psychiatric malady, other than depression when I was a teenager.
So, to get to the point of this thread, whenever I smoke weed again after abstaining for a while and invariably while with smoking friends, I imnediately get excited after puffing and start talking, with pressured speech, incessantly and loudly, often about subjects which make little to no sense except to me and in very abstract, tangential ways. I've even had people tell me, "Pass the joint! It's a joint, not a microphone!"
In other words, weed does NOT make me act cool or chill or anything along those lines. It turns me into a semi-coherent, blathering geek. I have an easier time controlling my actions on crystal methamphetamine or heroin even than weed. Also, and I think this has to do with the acid flashback thing again, sometimes I'll blurt out the most fucked up, inappropriate, sick shit after smoking up. For example, me and my ghetto dealer are riding around the car wash and stop to talk to this really old black man who is hanging out there buying crack from my friend. We had just smoked a blunt and taken some Transformer ecstasy pills. I roll down the window and exclaim to the man, whom I don't know, "Yeah, I just took some of that good, good ecstasy! You should cut open my stomach, get those pills out and take them yourself!"
Ok, but nevertheless, I love getting that manic feeling from weed and enjoy how it alters my thoughts to a degree. However, weed is a powerfully intoxicating drug and should be respected, especially if you have taken LSD lately or are on speed or something.