Is it just me, or does anyone else find it amazing how people are prepared to shout their private business all over the bus, just because they happen to be on a mobile phone. I have heard the intimate details of people's relationship break ups, problems their children are having in school and one really cringy conversation where a breastfeeding mother was telling a friend about the particular underwear she needed to buy in town. It passes a boring journey, admittedly, but why do people do it? Do they not realise everyone can hear them?