Armadillos and Dog Armour should deflect arrows

I am aware that armadillos are not immune to projectiles in real life, but I'm still suggesting this so that the dog armour and is more interesting and unique than just added a few defense points to our poor defenseless puppies. Same for the armadillo. I don't believe there is a mob already in game that can deflect arrows, so I think this would make them very unique.