sentences:  Despite this, he claims tremendous pride in his black heritage and identity, showing off a photo of an ancestor who was an officer in the Civil War; later, he discovers the man actually fought for the Confederacy.According to Jack, his nickname is "Toofer" because "with him you get a two-for-one; he's a black guy and a Harvard guy".Frank (with whom he shares an office) called him a "black nerd" à la Steve Urkel.