Patrick said that Brad was pretending to be a lot more stoned than he really was. (2.1.14)
Brad, who is having a difficult time coming to terms with his homosexuality, uses drugs and alcohol as an excuse for his behavior. You know things are bad when you're willing to admit to drug use instead of just coming out of the closet.
Part 2, Chapter 12
Maybe my whole family has been high, and we just don't tell each other these things. (2.12.44)
Pot is on the brain, it seems. Drugs are everywhere in Charlie's life, so much that he thinks his family might be in on it, too.
Part 2, Chapter 13
My aunt Helen drank a lot. My aunt Helen took drugs a lot. My aunt Helen had many problems with men and boys. (2.13.9)
Aunt Helen turned to drugs, alcohol, and promiscuity to deal with problems that haunted her for years. We'll let you figure out how that turned out.
Part 2, Chapter 15
Things were worse an hour ago, and I was looking at this tree but it was a dragon and then a tree, and I remembered that one nice pretty weather day when I was part of the air. (2.15.4)
If it weren't for the fact that Charlie were tripping on LSD here, this might be a pretty Zen moment. Instead, it's something that might permanently damage his already fragile mind.
Part 3, Chapter 1
Regardless, I decided to never take LSD again. (3.1.17)
During the course of the novel, Charlie drinks, smokes cigarettes and pot, and does LSD. But the LSD doesn't quite work for him—it just heightens the activity in his already overactive mind.
Part 3, Chapter 2
Essentially [LSD] is twelve hours of schizophrenia. (3.2.3)
Wait, LSD? We thought Charlie was talking about a day he spent with Gary Busey.
Sam went on to explain what she called "the trance." The trance happens when you don't focus on anything, and the whole big picture swallows and moves around you. (3.2.25)
Here Sam is talking about one of the effects of LSD, but the same could be said about Charlie even when he's not doing the drug, don't you think? He has a tendency to let the world swallow him whole and move around him—and he doesn't do anything about it.
Part 3, Chapter 12
After a week of not talking to anyone, I finally called Bob. [...] He said he had a quarter ounce of pot left. So, I took some of my Easter money and bought it. I've been smoking it all the time since. (3.12.16)
When most people buy Easter grass, they're buying piles of that green plastic-y stuff that goes in baskets. The fact that Charlie uses his Easter money to buy drugs highlights how much his childhood innocence has been corrupted.
Part 4, Chapter 3
I figured that it was about time to stop smoking so much pot. (4.3.56)
…and start getting real. Oh, sorry, it's "stop being polite and start getting real." We're still thinking about the glory days of The Real World. In any case, Charlie finally gets real and understands that the drugs are hurting him way more than they're helping him.
Part 4, Chapter 5
Patrick and I have been spending a lot of time together. We drink a lot. Actually, it's more like Patrick drinks, and I sip. (4.5.2)
Now it's Patrick's turn to hop on the using-alcohol-or-drugs-to-cope-with-a-difficult-situation bandwagon. We wonder how that will turn out.