A cog in the machine
Or you could be one of those great customer-service folks in India, taking calls from the United States and trying to explain to hard-of-hearing 70-year-olds that if they will merely 1) uninstall the software driver, then 2) hold down SHIFT and F5, then 3) Blundswigger the ablandwhich while carefully yippyandoodling the muggleswitch, then the computer will work just fine.