I suppose if you value your privacy over your well-being/existence you can perhaps resist giving up your password (not so with a fingerprint). Or maybe you could set up a "suicide pill" alternate password that wipes/bricks the machine when entered if you wanted to deprive your future self of the opportunity to relent as the torture escalates...

(Edit: I guess the latter is also doable via fingerprint if a different finger is used as the suicide pill, seems a bit risky for normal use though!)