Sunday morning and the first train out of Plymouth is delayed by over 30 minutes due to a mechanical fault that means the driver can't disengage the brake - cue train manager walking back and forth with increasing agitation until the train starts up and we all get to breathe a little easier.
Meanwhile the two women sat behind me had been chatting incessantly and from their talk I guessed one was much younger than the other. It turned out I was wrong: they were of a similar age, it's just that one was obviously much less emotionally mature than the other. Apart from the usual petty chit-chat about other people, regularly interspersed with criticisms of their behaviour, there was one comment that I found so utterly contemptuous I could have slapped the soppy tart who said it if only I could have stopped myself from laughing out loud at the same time.
They were looking at text messages on a mobile and the comment was "Why does hers have that little blue arrow on it? No-one else's does." The tone of voice implied that the woman who'd sent the message had been showing off by attaching a blue arrow to the icon of her text messages. When the recipient of the text said "Oh, no - that just means I've replied to her" there was a brief pause followed by the sound of rusty cogs grinding into unaccustomed movement and then the tentative and somewhat disappointed reply, "Does it?"
At that point I prayed the useless bitch was sterile.