@Namechangeyname We did the blowing into sheep's lungs, didn't even use a straw! @Cairneyes Glad to know kids still do it. We also did dissecting an ox's heart; or watched our teacher do it.
@twosandwiches We also had a day of litter picking in a nearby sports field: no gloves, or anything. We were rewarded with a canned drink. I too pick up litter as an adult.
When I fell over and hit my head in the playground, a teacher took me straight to hospital in her car, without so much as a backwards glance. (It happened to be before the school day, and the adult who brought me was still there, she came too.)
Playing Blind Man's Buff in the playground.
Creative ways of humiliating naughty children:
A pushchair was wheeled in, and two children who messed about in assembly were asked if they would like to sit in it.
Boys who laughed when told off were made to laugh in a mirror.
Children who messed about with sticks were made to spend a playtime sitting blindfolded, so they would know what it might be like to have an eye poked out. (We had recently heard the story of Louis Braille.)
When one boy allegedly weed on another, two teachers discussed making the offender write about it. I imagined this lad sitting down to write "I weed on John".
PE in vest and pants, at primary. We would get changed in the classroom, then we were made to put shoes on without socks to walk to the assembly hall, before doing PE barefoot, following instructions from a posh voice on a cassette player. "Curl up small, pretend you are the Ugly Duckling."
The kitchen staff selling drinks and biscuits, including hot chocolate, in the playground.