"I'm Grif," he said. "Or Doubletime," he added, still not entirely used to that bit.

"And you should be careful if you're going to offend science, Marinette. It'll screw you big time. I know." He tapped one temple with a finger to try and emphasize that he was a smart person with more life experience and knowledge and a basic level of competence.

Or at least most of those things.