The link in the Cabin Boy’s™ tweet takes you to a post at his site which does include a comment asking the visitor to meet Dave and David.
BTW, the image that Schmalfeldt has defaced is Rembrandt’s painting Balaam’s Ass, so the critter in the picture isn’t even a horse.
The story of how Balak, the king of Moab, tried to hire the prophet Balaam to curse the Israelites and how Balaam wound up blessing them is found in Numbers 22 and 23.
He answered and said, “Must I not take heed to speak that which the LORD puts in my mouth?”
You know, a story about how a bad guy’s plans backfire seems fitting in this context.
UPDATE—Those Gentle Readers who have not yet met Dave and David should check out their work over at the Artisan Craft Blog.