Something Vimes had learned as a young guard drifted up from memory. If you have to look along the shaft of an arrow from the wrong end, if a man has you entirely at his mercy, then hope like hell that man is an evil man. Because the evil like power, power over people, and they want to see you in fear. They want you to know you're going to die. So they'll talk. They'll gloat.

They'll watch you squirm. They'll put off the moment of murder like another man will put off a good cigar.

So hope like hell your captor is an evil man. A good man will kill you with hardly a word.”

therefore, all (?) movie action heroes are evil people.

When I've captured my adversary and he says, "Look, before you kill me, will you at least tell me what this is all about?" I'll say, "No." and shoot him. No, on second thought I'll shoot him then say "No."

Just rewatched the first Kingsman film and they did this pretty well. Samuel L Jackson straight up shooting Colin Firth in the face was a good subversion of the trope