Because interrogations are intended to coerce confessions, interrogators feel themselves justified in using their coercive means. Consistency regarding the technique is not important; inducing anxiety and fear is the point.
They eat the dainty food of famous chefs with the same pleasure with which they devour gross peasant dishes, mostly composed of garlic and tomatoes, or fisherman's octopus and shrimps, fried in heavily scented olive oil on a little deserted beach.

