at least if he falls in, he's safe! lol
I had the drive belt on my push lawn mower break once, and I have this "hill" that's very annoying to mow, even with the assisted push. a piece of pipe, 2 bolts, 2 nuts, and some rope later. I was rollin' around the yard dragging the lawn mower behind the gokart I had.. it was fun, but you could only go so fast, other wise the mower couldn't keep up.