Thank god DS has learned that Dad is good with pretend play, train play, car play, and the like. Mom is good with arts and crafts, reading, building marble runs/LEGO, and games. Both of us are good for walks and outside sports, although we tag team those. But I feel your pain because playing trains was killing me a few years back. I cannot imagine this craziness with a younger kid and how much time would have to be spent playing those types of things.