Riding a bike

A Catholic Priest was about to leave His Mission in the jungles where he

>has
>spent years teaching the natives when he realizes that the one
>
>thing he never taught them was how to speak English, so he takes the
> chief for a walk in the forest.
>He points to a tree and says to the chief, "This is a tree." The chief
> looks
>at the tree and grunts, "Tree."
>The Priest pleased with the response. They walk a little farther and he
> points to a rock and says, "This is a rock." Hearing this, the chief
> looks and
>grunts, "Rock"
>The Priest really getting enthusiastic about the results when he hears
> a rustling in the bushes. As he peeks over the top, he sees a couple
>
>of natives in the midst of heavy sexual activity The Priest is really
> flustered and quickly responds, "Riding a bike." The chief looks at the
> couple
>briefly, pulls out his blowgun and kills them.
>
>The Priest goes ballistic and yells at the chief that he has spent
> years teaching the tribe how to be civilized and kind to each ther, so
> how could he kill
>these people in cold blood that way? The chief replied, "My bike."