Interesting. A former classmate sent me some pictures of our junior high cooking classes (carrots in white sauce -yuck) and I don't guess liability was such a big issue back in the stone age. I learned to sew in school in the 6th grade on a treadle. My grandmother had a treadle that she used to let us play on. My aunt has it now and even though she never uses it won't give it to me until she passes. Bummer.