A teacher asked all of her students to draw a picture... She walks around looking at every student's drawings and she sees one kid who didn't draw anything on his paper. The teacher asked him, ""Why didn't you draw anything?"" The kid said, ""I did, I drew a cow eating grass,"" The teacher then said, ""Where is the grass?"" Student responds, ""The cow ate it."" The teacher then replied, ""Well, where is the cow?"" The student the responded to the teacher, saying, ""I don't know he came, he ate, and then he left.""