The Dumbball is so stupid it hums. Since the Dumbball hums at a pleasant volume, constantly vibrates and also possesses the ideal body height, he is gladly used at parties as a massage-stool. The Dumbball doesn't mind that it is constantly being sat on, for it is much too dense for. There are some theories that the humming results from mental hollowness. If this would be correct, the Dumbballs would be capable to produce an interdimensional Intelligencesoundprojection , which would probably make them one of the most intelligent creatures of the universe. However there are further theories which doubt these theories strongly, since except permanent humming no signs were ever observed of intelligence with Dumbballs.