First off, children are not allowed in my office room at my home, period. But with that said, I think toys and tools are interchangeable. For example, my Corvette is definitely a useful tool, it gets me to and fro, but it is also most definitely my favorite toy too.:-D My iPhone is a very useful tool with alot of extended functionality, but is also just great to play around with too. I can think of several more examples where tools and toys are definitely interchangeable, but you get the idea.;-)