Ring any bells?

So there you are between bus stops. As you'd expect in busy busy London, someone presses the button to ring the bell to stop at the next stop.

Then it rings again.

And again.

And again.

It's pretty annoying. But what drives people to do it. Everyone can see who's doing it, and they just stare blankly out the window. If anyone does say anything, they're likely to get abuse in response. Interesting. I might look into this further, but I promise I won't do it myself.

More on this later.