The male reproductive organs hang outside the body, where they are very vulnerable to damage.
Some years back, I was the unwilling recipient of a racquetball, delivered at high speed directly to the male reproductive organs that you speak of. I can therefore say from experience that this is the single most valid and compelling argument against the concept of intelligent design. Certainly nothing could convince me otherwise.
The
Argument Ad Testiculum perhaps?
{Close - The
Argument 'nad Testiculum, I believe}
Edited by Adminnemooseus, : Abusing administrative editing privileges by attempting to add further humor.