Me, gently teasing the grandboy after he decided to race me (while I was walking) and did a chest-plant on the grass:

“Hey boy, why you fallin down like that? What are you doin down there?”

Littleun, in true form: “Ha gwumpa I fall because I run fast. You can’t fall down because you swooooow”

And then, the final victory dance: “Na nanny boo-boo…”