There's a construction site right down the street from us. They just finished knocking down the buildings that used to stand there, and now they're digging a big hole in the ground. Bulldozers, backhoes, trucks filled with dirt.
It's very similar to a construction site in America, except for this: it's wide open. There's no fence, no gate, nothing. You can walk in off the street and wander around, and as long as you don't get in anybody's way, nobody seems to care.
Do I have to tell you how much Alan loves this construction site? I go in there with him on my shoulders, and we watch bulldozers pushing dirt around, and backhoes dumping gravel, and big trucks gunning their engines (Vroom! VROOOM!!) and he is absolutely transfixed. Clings to my hair with one hand, bounces up and down on my shoulders, points with the other: "Vroom vroom! Vroom vroom!!"
Yes, I'm very careful. And yes, I like it too.
Vroom vroom.