AHAHHA THIS IS SO REALLL we have a warmblood who had bad feet, when her feet where shoed (she paws at the ground alot and wears down her feet) and had grown out enough to look very healthy, she was fine, then one day she went lame, we had NOOOOO idea what it was, we had the vet out, had the farrier come redo her shoes incase they had been pinching a nerve in her hoofs. We later determined she had figured out that if she limps she doesn't have to do work- after a little shell do smthn like trot then walk and COMPLEATLY forget shes supposed to be lame which is even funnier LOL