I played a gnome sorceror in a short-lived campaign of Teflon Billy's. He was part of a small gnomish minority in a human-dominated society; as such, he was alienated, ruthless and constantly trying to prove his toughness. He was named Ash Nazg Grimbatul but, suprisingly, no one got the reference.
I think we were playing some variant at the time, maybe even 2E, as we had meaner fumble rules. I recall us interrogating someone and getting nowhere so; my gnome had been trying to look tough and having no effect despite his considerable Charisma. Anyway, he decided to demonstrate his toughness by charging up a Shocking Grasp and saying, menacingly, something to the effect of 'do you want to see the consequences if you continue to resist us?' while bringing his sparking hand up to the prisoner's face. Even so, he seemed just as ridiculous and small as ever and so the prisoner continued to stonewall us. With a dramatic flourish, I decided to hit him with my scary, electrically pulsing hand and rolled two 1s in a row. I hit myself in the chest, did more points of damage than I had hit points and crumpled to the floor, unconscious. After the cleric healed me back to consciousness, I announced to the prisoner "that could have been you." Then he talked.
Anyway, I played the gnome as a figure desperate to be taken seriously, who specialized in damage-dealing spells and tried to effect a scary image -- all to no avail. Gnomes just can't be scary.