I took a few dragging steps toward the locker-room door. 'You're doing something to me that I wouldn't do to a dog,' I mumbled. 'What you're doing to me is worse than if you were to kill me. You're locking me up in shadows for the rest of my life. You're taking my mind away from me. You're condemning me slowly but surely to madness, to being without a mind. It won't happen right away, but sooner or later, in six months or in a year - Well, I guess that's that.'I fumbled my way out of the locker room and down the passageway outside, guiding myself with one arm along the wall, and past the sergeant's desk and down the steps, and then I was out in the street.("All At Once, No Alice")
Cornell Woolrich, Tales of Obsession: Mystery Stories of Fatal Attractions and Deadly Desires
insanity, madness