Dr. Grabengon had only one solace, and that was drinking. When he wasn't drunk, he was miserable and had splitting headaches, during which he mostly saw pink elephants.
The elephants were not very menacing in their behavior and never threatened him directly, but they liked to dance in circles, tapping their feet all around Dr. Grabengon, which intensified his headaches to an intolerable degree.
Therefore, to avoid the dancing pink elephants, he frequently resorted to drinking Gravat, an especially strong kind of drink that was also illegal. His friend Eagle took care of the supply for him as a favor, for they were very good friends.
Dr. Grabengon was a doctor by training, and a charlatan by profession. He traveled from town to town, selling strange potions to the more gullible citizens. The potions had some merit, because he used some of his knowledge and skill in crafting them, but they sometimes had unpredictable effects on their users, or were outright dangerous. One time, Dr. Grabengon very nearly escaped an attack by what he thought were monstrous creatures, only to discover that they were his own customers. They had grown tentacles and spines as a result of drinking one of his potions, and chased him for two hours straight all over town, until he accidentally stumbled and fell into a large ditch by the side of the road.
Fortunately, the monstrous customers did not notice him lying there, and ran right past him, waving their tentacles and shouting bad things.