Sort of mathematical law, says you can only get off real good on a stimulant x number of times, even if you increase the doses. But you can’t ever get off as nice as you did the first few times. Or you shouldn’t be able to, anyway. That’s the trouble with designer drugs; they’re too clever. That stuff you’re doing has some tricky tail on one of its molecules, keeps you from turning the decomposed adrenaline into adrenochrome. If it didn’t, you’d be schizophrenic by now. You got any little problems, Lise? Like apneia? Sometimes maybe you stop breathing if you go to sleep?"