The alchemist tried for years to transform himself into a donkey, always with no result. Finally, he was sure that he had the perfect formula. He joyfully raised the potion, threw back his head and slugged down the liquid. POOF! BLAM! Crackle! All that was left was a pile of cinders on the floor. But, although he didn't manage to turn himself into a donkey, I suppose he was somewhat successful: he did make an ash of himself.