Oh, good grief... You don't want to get me started on this one. I was once on a train journey (in the designated quiet carriage, no less), when some obnoxious businessman, entirely lacking in self-awareness, started barking orders over the phone at length to his staff at great volume. Eventually, I leaned forward and said to him: "Excuse me, would you mind speaking up a bit, as the rest of the carriage and me can't hear clearly and we're trying to take notes." After that, he ended the call hurriedly. Hahahahaha!