The Messe de Nostre Dame of Guillaume de Machaut (ca. 1300-1377) is one of the most frequently performed and recorded works in the medieval repertory (for a list of recordings, see Lawrence Earp's Guillaume de Machaut: A Guide to Research, Garland Composer Resource Manuals, 36 [New York: Garland, 1995], 423-26).
Answer: He cuts the grass everyday to keep the grass low to create the illusion of the yard appearing larger. By the end of the week he starts the cycle again to make sure the grass doesn't start overgrowing.
