The tweaker thing, I think they just can't sleep because of the drugs so they just kinda wander around like zombies at stores.

And good luck to you cubmom, I know what you mean about immature/irresponsible/just plain stupid friends...my dh has a few of them, it's kinda pathetic when they're in their 30s or 40s and act like goofy teenagers or just want to drink all the time and then they act stupid because they're a little bit lit... I don't have much patience for people like that.