I falsified documents at a previous job to score a $5/hr raise. It was during a transition period when one boss left, and the new one had been brought in from outside the organization. When new-boss asked why the raise, I made up some bs about new responsibilities i had taken on.
In reality, I pulled in $15 an hour by locking myself alone on our raised floor and downloading pornography from usenet using the schools mainframe and dedicated oc48.