I know of someone who was trained to withstand torture, both psychological and physical. Real tough nut to crack, you see.
Until the guy in charge ordered a basin of water brought in, had the guy stripped buck naked, and then the guy in charge left the room, leaving the subject and one of the soldiers to guard the subject.
The subject asked the soldier what the basin of water was for.
Soldier: To wash your chicken**t blood away after we cut that little self of yours dangling in front of ya, what d'ya think ?
Subject: What exactly do you guys want to know ?
A cop grew so frustrated at his inability to have his suspect point out the other suspects' whereabouts he borrowed a boa constrictor from an itinerant medicine hawker and let the constrictor loose in the suspect's cell through a window while the suspect was sleeping just below the window.
Before the day was out, they had all the suspects in, plus signed confessions, a prosecution witness in a former suspect who was so grateful the cop saved him from that stray constrictor (who truly hadn't been fed for days and was very irate).
On the other hand, a constabulary officer in my day tried the "good cop" approach and talked with a captured communist guerilla, chatting with him like the other guy wasn't somebody who would kill an 80 year old female village chief by inserting a rusty, dull pointed jungle machete trough the gap between the woman's clavicle and her neck straight to the old woman's heart and have the woman's relatives watch, from children to grandchildren, just for good measure to instill a lesson among the village population that they shouldn't snitch.
Good cop never got anywhere for five full days. He fed the guy, gave him smokes, bought him soda and pop and anything he wanted, let him have his visits, his water, his coffee, his blankets, his shower, etc., etc., etc. and never got anything from the bad guy except a mouthful of communist slogans, rhetorics, a lecture on dialectical materialism, feudalism, US imperialsim, Marcos dictatorship and US complicity, and how the masses will rise and so on.
Five days. Until he blew a cap off the bad guy, and poured a mixture of salt, vinegar and crushed red pepper onto the wound and added human feces on top of everything.
He got everything he needed on the sixth day. They had to amputate the bad guy's leg, but what's a leg in exchange for lives saved, eh ? A leg for the revolution. Not bad. The guy will get his medal, maybe a statue of his leg, IF they ever get in power.