[He'd been too distracted to think about it, but even Kaspar's casual glance is enough to remind van Zieks of how underdressed he is. Now, he has noticed, tacitly, that a lot of the Modern People clearly have laxer standards for dress, but
1. Kaspar seems to not be one of those people in his estimation
2. he refuses to adjust to the lowest common denominator dangit.]

I haven't, I typically don't eat much in the mornings, but-
[Wait no he can't just leave his guest unattended??? How do people do anything in their homes without staff.]

I can, at least, brew a fresh pot of tea if you would like, if you'd excuse me for just a moment, I'm hardly dressed for company.
[He's thrown off his rhythm this is not a situation he's at all prepared to handle.]