The Busboy caused the firing. George and Kramer visit the busboy's ramshackle apartment to apologize, only to accidentally leave the door open, letting his cat out. A few days later, the busboy comes to see George, and tells him that there was a gas line explosion at the restaurant, killing five employees, including the busboy hired to replace him. Moreover, his search for his cat was both successful and led him to stumble upon a better paying job. He thanks George for inadvertently saving his life and getting him a better job. Elaine faces having her boyfriend Ed stay with her for
Work (thermodynamics) system it is not measured as pressure–volume work, and it is called isochoric work. Considered solely in terms of the eventual difference between initial and final shapes and volumes of the system, shaft work does not make a change. During the process of shaft work, for example the rotation of a paddle, the shape of the system changes cyclically, but this does not make an eventual change in the shape or volume of the system. Shaft work is a kind of contact work, because it occurs through direct material contact with the surrounding matter at the boundary of the system.