While it may not be a topic people typically talk about (unless they are parents of young children), bathrooms are surprisingly useful for conveying concepts related to both privacy and usability.
Read a short article about how I illustrate privacy concepts with potty talks in my classes: Lessons from the Loo, Communications of the ACM, July 2021, pp. 27-29.
Watch my 20-minute potty talk video that I recorded in my bathroom and presented at the virtual 2021 Conference on Pirvacy Engineering Practice and Respect (PEPR).
Browse my collection of bathroom drawings in my PrivacyIllustrated project.
Do you share my fascination with potties? Read Chelsea Wald's book on toilets: Pipe Dreams: The Urgent Global Quest to Transform the Toilet and check out her big toilet bibliography. Or watch this disturbing 2014 dark comedy video anticipated smart toilets and the invention of butt biometrics.