Rooms tend, when they reach a certain stage of cluttering, to become occupied by the Chairs that No One Should Sit In. They insinuate themselves close to the doors, gathering piles of papers in their seats in an attempt to pass themselves off as genuine office equipment. They may later, once secure in their position, begin to eat the paper, though this has never been observed firsthand; they may also make more of it. The lights tend to stop working properly once a Chair has moved in – and if they were not flourescent before, they become so.
The Chairs are always black or brown, and often naugehyde. They have headrests, but they are positioned badly, and sometimes spin all the way around. They are set low to the ground with seats that are tilted inwards and backwards in ways that subtly bend the laws of physics – it is impossible to draw an accurate image of the Chairs as seen from above. It is, in fact, very difficult to position oneself above the chairs, as their structural peculiarities become contagious after a certain amount of time, making other furniture in the room too unstable to climb on. In particularly extreme cases, the occupants of Chair-infested rooms have been known to stick cardboard under all four legs of a table. It is assumed that the Chairs are attempting to bring other things down to their level; there is evidence that they are a type of mushroom.
The inexperienced will sometimes, upon the introduction of children to their workspaces during a particularly hassled moment, feel the urge to clear off a Chair and tell them to sit in it and wait. The child will be reluctant to do so, not being able to see to the bottom of the chair, and if forced will become surly and throw up in a car fairly soon afterwards, and possibly, if exposed for long enough, bring home a C later in the week and refuse to talk about it. It is not clear what benefit the Chairs derive from this interaction, but as they all do it at least once in their lifespan, it is assumed to be important.
There is only one proven method for removing a Chair, and that is cleaning up the damn room.