Once when I was a little boy I received as a gift a toy cement mixer. It was made of wood except for its wheels — axles — which, as I remember, were thin metal rods. I’m ninety per cent sure it was a Christmas gift. I liked it the same way a boy that age likes toy dump trucks, ambulances, tractor-trailers, and whatnot. There are little boys who like trains and little boys who like vehicles — I liked the latter.