At work I avoid operating the forklift, milling machine, or anything else that could cause injury to me or my people. I still get a very slight buzz, but nothing at all like when I first started using it (think 5 or 10% of previous effects). I have had times when I consumed what I needed (four or five bowls) when friends were in the same room, and they have gotten high from just being there while I had no change. In general I consume in the very early morning and at night when I know I won't be leaving again before sleep. I avoid using during the day because most days I have to drive and work.
MMJ is certainly not a perfect solution, but it beats constant never ending pain (no drugs) or addiction and liver failure (opiates with acetaminophen) http://www.drugs.com/vicodin.html .
That seems to be the common wisdom, but is there any evidence that that's true?
At 5 joints a day OP probably has built up a pretty high resistance to THC. Speak to enough every-day smokers and you'll find they go on breaks every once in a while to address this.
>I wondered whether MMJ would fall into the category of "do not drive or operate machinery" whilst using.
Depends on the strain, if you're smoking Indicas then yes you should not operate machinery.
http://norml.org/library/item/cannabis-and-driving-a-scienti...
It's also important to note the most dangerous thing you can do, bar none, is to drive tired and unfocused. Which is very much legal.
Try driving on LSD. While drunk. And high on xanax. While shooting heroin.
Obviously, there are more dangerous states to drive in than tired and unfocused...
What you see is distorted, but everything you see is actually there. The walls might look like they're dripping or wavy, the branches on a tree appear to reach out at you, and colors become more vibrant, but you won't ever see gigantic bunnies or flying unicorns or some other stupid shit that often ends up in film depictions of a psychedelic experience.
As dosage increases, your mind increasingly tends to interpret what you're seeing as something else, like a shadow may appear briefly to be a person. When this starts to happen I would no longer feel comfortable driving, but for me this occurs at the peak of 500 ug + experiences, the equivalent of 5 standard doses. Not saying that driving on LSD is a great idea, but on a single standard dose it's not nearly as dangerous as driving after you've pulled an all-nighter IMO.
When you're on acid, you don't change as a person, your reactions don't change. If you see something weird you say "woah, that's weird" but, unless you're deep in a trip and forget you are on a substance, you can usually handle it like a normal person.