Original Commentary

It was my constant insisting/ pestering of Terrence to throw in some kind of line like Kimberly delivered in panel 3.

Is she joking...? Who's to say... maybe Brisbane acting all flustered and panicked reminded her of their days back in the Minerva theatre and she could not resist the urge to tease him a bit. Who knows how the mind of women work after all... -Isabel

Modern Commentary
Brisbane compartmentalizes. I'm sure Ms Taylor told him that she was going on vacation, as family.

But he was never told in his capacity as her administrative assistant.

Or he got called away to make more coffee before he could finish writing it down. Either way

Also, Kimberly is not joking. She's teasing because Brisbane is cute when he's flustered, but the offer is genuine - Terrence