Office Click Clack

Carl, an office worker at a dead end job as a secretary, is forced by his boss Owen to type an infinite document with a crappy keyboard. When Carl types too slowly, or takes too long, Owen will take away one of Carl's keys. Carl is forced to sacrifice one of his remaining keys by remapping it to the missing key in order to type the document. How long can Carl keep his job before Owen gets fed up?

IMPORTANT GAMEPLAY NOTE:

You can remap ANY KEY that produces a single character, plus the arrow keys. You can map any alphanumeric or single symbol, but not shift/alt/control/etc.