There IS the HPV vaccine, which is basically a cancer vaccine for one set of cancers.

Chances are your tires actually DO have radio emitters in them - tire pressure sensors are wireless and send their measurements out on the 433 MHz band.

I think it’s referencing Clever Hans, a horse who allegedly could do arithmetic and would respond to questions by tapping his hoof (Clever Hans famously could not actually do math - he had just learned to tap his foot until his trainer looked happy with the number of taps).

I’ve made this plenty of times. Whole canned tomatoes are usually better than diced - just break them up a bit by squishing them with a spoon when you put them in the pan. Needs to cook for a good while - 45 minutes out so. And add salt at the end to taste! But a super reliable sauce and requires very little equipment out prep.