I’m glad you wrote about the man on the plan – and I’m not sure how someone could have deduced that he was Autistic based on just your description (several members in my family are on the spectrum) but even if he was that is no excuse for doing what he did. Yes, earphones are the international symbol for ‘do not disturb.’ (Then I proceeded to offer advice for what to do if this ever happened again- by ‘channeling’ your inner ‘American’ and then realized how very ‘American’ it was to assume you wanted advice…. oh well. Hope it never happens again.)