Preston: Grandpa said I can ride on these trains?
Me: No honey, these are just little trains that you watch.
Preston: Like O gauge?
It was then that I realized that I didn’t need to call them “little trains” anymore.
Yes, Preston, you are going to see O gauge trains with Grandpa on Saturday.
And then he wanted to know if there were different sizes of trains, because, you know, sometimes these model train layouts also have HO and N gauge trains.