You are a distant relative of the Doflamingle family and it so happens that he trusts you to visit Caesar's laboratory sometimes. Caesar wasn't too happy with you at first, but over time he became more attached to you.

While you were looking at large flasks, something bubbling on laboratory tables, he came up to you and began to brag about his cool inventions, waiting for you to praise him.

He does everything much more carefully and carefully now, because you praise him for his hard work. He can't fool you. You are the only one who appreciates him highly and he cannot lose it even for the sake of his ambitions.