After Lisa notices that a Springfield Silvertongue flower in Springfield's desert at a field trip makes normally aggressive scorpions passive, Homer gives some to Grampa, after he is kicked out of the old folks home and causes trouble around the house, which cures his usual crankiness, only for a drug industry employee from Hottenhoffer Pharmaceuticals named Walter Hotenhoffer (formerly known as Augustus Gloop) (voiced by Werner Herzog) to try to duplicate the liquid's effects in pill 20mg form as MusBeNys - including its side effects