You don’t remember how potent of a drug nicotine is until you’ve not smoked for a while, then you do again — you get high as shit, just for a minute or two. Likewise, caffeine. Jittery as shit, just for an hour or so, followed by a crash. Here’s to a stable tolerance through repeated drug use. Or, here’s to being high and jittery. Whichever one is more fun.