Having a ball

As part of my plan to prevent Fonti from eating sand because he's bored, I bought him a bright blue ball to play with. Here's what I was hoping for:

Picture from here

Unfortunately (although not totally unexpectedly), here's what happened:

This paddock ain't big enough for the both of us

I'll just remove you from my domain (even though I'm slightly scared)

Eiii, it moves!

If I stare at it long enough maybe it'll go away

You can't even be eaten. Useless.

I bet the sand tastes better on the other side of the fence...