- "You go over there, you're taking your life in your hands. That Doctor Brown's a real nut case."
- —Warning Marty McFly about Emmett Brown
Marty McFly had gone to the shop to buy an interocitor tube for Douglas J. Needles, who had blown the tube in his guitar amplifier; broken the one he had tried to steal from Marty; and had then taken Marty's guitar, refusing to give it back until Marty got him a new tube.
However, the attendant had sold all his stock of interocitor tubes to ELB Enterprises. When Marty left to go ask Dr. Emmett Brown for one of the tubes, the attendant warned him that Doc was "a real nut case".
Personality and traits
The shop attendant had a beard and glasses, and dressed in 1970s style clothing. He was sarcastic, but seemed genuinely concerned that Marty was going to Doc's garage, as he believed Doc was dangerous.