So, one of my cats (Schrödinger) finally got over the noise of the railway and decided to inspect further. After merely observing for a while, then following behind, he decided it was time to try to actively effect this new and strange beast.
I'm sure you can all imagine what happened next, and sure enough, one round trip after the photograph... Let's just say that red van didn't take well to it's swift trip to the floor, nor did the cat who got somewhat deluged in a shower of Lego fright wagons!