My understanding is that overtime scams are common in parts of the public sector. The usual scheme is that you are not punished for not showing up to work, but

My understanding is that overtime scams are common in parts of the public sector. The usual scheme is that you are not punished for not showing up to work, but are paid overtime for taking someone else's shift. As a result, swapping shifts with someone results in a 50% pay increase for both of you. Together with other scams, the result may be even greater.