When the caveman met the civilised man
impressively, one did not kill the other.

Each had skills the other understood
would take long practise to equal.

Instantly created sign language
deepened their understanding.

Each was amused, wondering if
they could make it in the other's world.

For simple joy in the parabola they threw 
between them a small green sphere.

I believe it still flies, sentimental me,
superstitious and primitive; I am the caveman.