

“The only known official instance of cat litter being placed in school classrooms for potential use by students was in the late 2010s by the Jefferson County Public School District in Colorado, where the 1999 Columbine High School massacre took place. Some teachers were given “go buckets” that contained cat litter to be used as a toilet in an emergency lockdown situation, such as during a school shooting.[4][43][44]” — Note: official instance. I’ve been told it was popular enough for someone to sell premade “go buckets”. https://en.wikipedia.org/wiki/Litter_boxes_in_schools_hoax
App Clips. I’ve used these several times to pay for meals at restaurants. Those use Local for Toast. QR code on bill. Scan it. Check the items. Add the tip. Pay with Apple Pay. I eventually installed the app, but I think it still uses the clip interface instead of opening the app. Did it for parking once too, different app. My local Sunoco also has App Clip tags at the pumps, but I don’t need those. Definitely a self-serve deal in my experience. I’d see more if I went out more often.
https://support.apple.com/guide/iphone/use-app-clips-iphb3a73ec53/ios