Minecraft wiki entry for Cat, associated text: A cat not already sitting attempts to get on top of chests, the foot part of beds, or active furnaces at the cat's current Y-level within a 4-block-radius square horizontally, and once on top often assumes a sitting position without a command from the player. A cat also occasionally attempts to sit on these blocks if the blocks are at ground level. A chest with a cat sitting on top of it becomes unusable unless the cat is commanded to stand. Cats that sit on their own can be ordered to stand, or they may get up if the player holds a raw fish nearby. The cat can also be brought down by removing the block or pushing it off. A cat can also be forcibly moved by attacking it. A cat does not sit on a block that is obstructed by another block above it.