Herbert might have been a horse’s ass himself as revealed by this written statement (this is his wife pictured on an ass):
I arrived finally at the conclusion that a horse was one of the original mistakes of God’s creation. I felt the horse is too high off the ground for my convenience and safety on the High Sierra mountain trails.
The horse would have been better if he had been given a dozen legs so that he had the smooth and sure pace of a centipede.
Furthermore, the horse should have had scales as a protection against flies, and a larger water tank like a camel. All these gadgets were known to creation prior to the geologic period when the horse was evolved.
Why were they not used?!?