Are more common than you think.
There’s a interesting fiction book on the psychology of false confessions (often seen as on of the top one hundred literary works of the 20th century) called Darkness at Noon. People, erroneously, think that a person wouldn’t confess to something they didn’t do. Just as they think they would never do so, or acquiesce to the striping of their liberties. Time and again, history shows that those beliefs are incorrect.