At seven years old, when Terry was the cop in cops and robbers, he’d let you go if you greased his palm with a lolly. In games of hide-and-seek, he hid like a fugitive. But so what? It doesn’t mean a predisposition to violence is printed on a man’s DNA. Yes, people are always disappointed when I tell them that as far as I’m aware, Terry was a normal infant; he slept and cried and ate and shat and pissed and gradually discerned that he was a different entity from, say, the wall (that’s your first lesson in life: you are not the wall). As a child he ran around screaming that high-pitched noise that children scream. He loved reaching for poisonous substances to put in his mouth (an infant’s instinct for suicide is razor-sharp), and he had an uncanny ability to cry just as our parents were falling asleep. By all accounts, he was just another baby. I was the remarkable one, if only for my inabilities.

Before Terry arrived, our lives were dominated by illness. It amazes me now how little I knew about my own condition, and how little I wanted to know. The only thing that interested me were the symptoms (violent stomach pains, muscle aches, nausea, dizziness); the underlying causes seemed totally irrelevant. They had nothing to do with me. Encephalitis? Leukemia? Immune deficiency? To this day I don’t really know. By the time it occurred to me to get a straight answer, everyone who might have had one was long dead. I know the doctors had theories, but I also remember they couldn’t make up their minds. I can only recall certain phrases, such as “muscle abnormality,” “disorder of the nervous system,” and “euthanasia,” that made little impact on me at the time. I remember being jabbed with needles and force-fed pills the size and shape of swollen thumbs. I remember that when they took X-rays, the doctors ducked out of the way very quickly, as if they’d just set off a firework.