>'Currently, zero-tolerance policies have removed a long-standing safety-valve for this kind of torment.' Absolutely. It feels to me like forgotten wisdom tha

>'Currently, zero-tolerance policies have removed a long-standing safety-valve for this kind of torment.' Absolutely. It feels to me like forgotten wisdom that unfortunately can't be taught after the fact. If a person has grown up in a way that they didn't just fail to realize the utility of that valve but learned to fear and despise it there's very little chance of changing that. We've traded the annoying whistle and an occasional blast of scalding steam for some percentage of kettles that simply explode with no notice.