Don't get me wrong, I wasn't generalizing kids. Apologies if you thought I was. It was getting towards the end of the summer holidays and they were bored - at going to London Zoo! :)
A child having a tantrum in the quiet carriage of a train. The parent(s) don't take them out though and give them a rollicking. Nope, everyone has to suffer with passengers tutting and sighing for the length of the journey.