In one of my migrant wave, i spotted a tanner that had nice combat skills, and added him to my main military squad.
Then looking at his resume hmm...
extremely suspicious considering my generated world is roughly 57 years old
I confirmed this was indeed a vampire
with the renaming trick (a vampire fake name will not be replaced by your custom name, probably an exploit that will be fixed in future DF updates).
So to avoid drained to death dwarfs, i decided to build a 8 level deep pit, with a retractable bridge at the top. Meanwhile i assigned this vampire into his own squad, alone, and stationed him in a small room i closed with a granite door set to forbidden.
And just when i finished building my death pit for that vampire, guess what.
My stupid dwarfy population ... just elected him as the mayor.
Despite he has been in the closed room since his arrival, meaning he could not have really talked or seen anybody more than a few minutes when he went from the border to his closed prison.
Now that's charisma, none hear about you, none see you, nearly none even know you're there, but you get elected.
Are dwarf vampires having some kind of distant mental influence power ?
edit : oh he survived the fall through 8 levels.
He has broken right hip and broken left leg, so he can't stand up anymore, and he has the skull broken (though he's always "alive") .
Can't get him to climb back to the bridge by himself, as he does not move anymore, and can't risk a stupid dwarf to go fetch him and drop that vampire into my hospital.
Will have to find another way to finish him.