I am a cautious father of a very adventurous two-year-old daughter. Every time my back is turned or I lose sight of her, there is a potential for trouble. That’s unplanned trouble of course, because my wife and I have done everything possible to try and baby proof our house, to no avail. And now that the weather is inviting us outside, there is an entirely different set of options for trouble – park visits, sticks and stones, pavement in general.