One of my elite champions was sentenced to 29 days in jail for a failed mandate (my luck, my mayor likes chrome and the damn orcs raid every summer and fall so I can't get any). I just activated a small fortress guard, and one of them immediately ran off, grabbed the hammerdwarf, and dragged him back to the chain. I just get this mental image of Barney Fief dragging Rambo to prison.
My hammerdwarves are proving themselves to be 100% badass. Had a siege of about six orc squads and they carved a path hip deep in orc guts. I'm working on making 10 more sets of steel chainmail and smelting some nordic gold to expand the hammer corps, currently I have 9 legendaries (one is just Grand Master, got a light gray spinal wound, but he's close enough) on full time guard duty at my gates.
Debating walling off the magma pipe. I had to savescum the last time I tried it, a hammerdwarf dove into the magma pipe after an imp. I don't usually savescum, but that falls under the heading of dwarves dieing due to a bug (seriously, who jumps into magma?). I hate exposed magma pipes.
Edit: Orc siege killed about 10 dwarves. Orc elite sniper *shiver*. Luckily he's dead, and the elite sniper was a local leader so he's gone. It was an ugly battle though, the slaughter finally ended when one of my legendary marksdwarves shot the sniper 12 times, finally killing him.