Warren fancies himself something of an artist and works with mosaics. He's surprised that Otis, a reliable hard working citizen during the week, is a drunkard on the weekends and decides that what the man needs is a hobby. Otis soon throws himself into his art but the results are exactly what you would want to put on the living room wall - which is exactly what Andy has to do when Otis gives him a large mosaic of a brown cow. It turns out that there is one certain way to ensure that Otis does his best work.
—garykmcd