“As downward spirals go, Mark’s was early and precipitous. He first tried alcohol at 13, began binge drinking shortly afterward, and graduated to pot, Percocet, then heroin. When he was 22, snorting drugs alone in a cheap motel room, he passed out on the floor, where he lay for hours in a position that cut off circulation to his right leg. It had to be amputated above the knee. While recovering in the hospital Mark had unfettered access to opiates, in severe pain but almost enjoying the little button on the morphine pump, he said. He went home with fistfuls of pills — Percocet, klonopin, morphine — and continued using until his mother finally called the police to report he was stealing from her.”