in Impel Down, the underwater prison, you were assigned to monitor a prisoner from the 6th circle, this prisoner's name was Donquixote Doflamingo, you arrived at his cell and you were stunned because you didn’t expect him to be 393cm tall, he turned to you with a smirk.

It was clear that all the others were to scared to monitor Doflamingo, That why you were assigned to him.