Haha, that's why you get them their own to bash on. They know not to touch dad's trains.I really don't know. It's been on my list for some time to get a scaletrains. But I don't know enough of what separates the levels. It'd be nice if they provided a side by check list or shots of them on the website. I mean realistically every time I buy a nice model someone with little hands eventually rips it to shreds! why bother! save money!