Next time you long to run around in a playground, remember this. We're in a playground every day.

I'm moving. To the zoo.

  1.  Aversion to Pavements Part 1. There’s a wall a couple of feet high next to the pavement. That looks like a far more entertaining place to walk. Especially as it’s quite thin and so has an element of risk. 2.  Aversion to Pavements Part 2. Cracks. They’re disasterous things to have on pavements. You must avoid them. Stepping on the cracks mean you lose the game. And the world implodes. 3.  Your Colleague’s...