In this type of scam, fraudsters recruit an innocent party, perhaps under the pretence of a job offer or personal favour, to launder money.

The fancy-wrapping of 'guarantor' agreements moves things elegantly further away from such an embarrassing personal favour.

He called in a personal favour.

My father would never have granted such personal favours, but they didn't believe me.

The power of these ministers depended entirely on the personal favour of the monarch.