At least part of the reason I am a SNOOT is that for years my mom brainwashed us in all sort of subtle ways. Here's an example. Family suppers often involved a game: if one of us children made a usage error, Mom would pretend to have a coughing fit that would go on and on until the relevant child had identified the relevant error and corrected it. It was all very self-ironic and lighthearted; but still, looking back, it seems a bit excessive to pretend that your small child is actually denying you oxygen by speaking incorrectly.