That said, every so often, something a bit strange happens that catches you off guard. Whether it's people in fancy dress, passengers exhibiting bizarre behavior or just something disgusting, public transport in London does throw you the occasional surprise. A few months ago I was on my way into work on the DLR (Docklands Light Railway), when I noticed that the automated PA announcements that tell you which station is next on the line had a weird delay effect. The result was a series of announcements that were pretty hard to decipher and for some strange reason, slightly unnerving. Because of these strange sounding announcements, passengers, some of whom see each other every day and never so much as acknowledge each others existence, we're smiling at each other and laughing slightly confusedly at what was going on. As I was standing next to one of the PA speakers, I pulled out my iPhone and began to record the announcements.