Not exactly the expression I would expect, either…

Next we’ll learn that Genie is Professor Camel’s Niece or some such thing…

Hey, Mark… Unless the good professor went out to commune with The Yeti, or take a leak, he’s still n the room with you… Are you meaning to have a sidebar with Genie? Because in all likelihood, Harvey can hear everything you are saying! And your Gob-smacked look in the third panel seems simply out of place… this is not a revelation that would require such a reaction…