Well! As if having one of my legendary metal workers go insane wasn't enough, I accidentally defaced the mastery of another metal worker, this time an Armor by the name of Mosus Adilteling. I don't know what of his I smelted down, but (since he was in my elite military squad) after cutting a dog's throat open he went up into the barracks to freaking train. Whilst still tantruming.
Natually the captain of the guard was right on his tail. After the dwarf finally stopped to do his pushups of rage, the captain whaled on him ineffectively with his wooden training axe. Unfortunately, however, this wasn't good enough for the commander. He had to go the extra mile, and kick the guy's left arm into breaking.
This was an incredibly low move, considering the guy was missing his other arm entirely. He still had the use of his right arm, but instead of dragging himself down to the hospital where he murdered the street dog he simply plopped right down, still tantruming, in the middle of the barracks storeroom. The doctors all went up to him, washing his arm off and even getting as far as suturing his arm.
It was at this point that Mosus lost it. As the chief medical dwarf was wrapping up his arm, he got right the fuck up and started wandering around babbling, with his bone presumably still sticking out of his arm. He's now hanging out in my dining hall, dying a slow death. Since he WAS a legendary armorer, I've decided to dig him on of my honorary tombs instead of just throwing him in with the masses. He's a crazy bastard, but his short-lived glory of being legendary was enough to give him a place in my annals.
Update: Woah, creepy. My captain of the guard just went into a strange (secretive) mood. I'd bet my golden statue garden it'll relate to Adilteling. And even though his only moodable skill is furnace operating (don't actually know if that is, but it's the closest I can figure) he's claimed a craftsdwarf's workshop.