True belligerance is the ability to sit calmly hands folded in your lap and say "no" in a normal tone of voice with such a force of will that the other person is reduced to tears knowing that they will never get their way. No yelling. No gestures. No profanity.

Once you unlock that power, swearing and yelling at people loses its fun. It would be like riding the wildest roller coaster at the theme park first then spending the rest of the day on the ferris wheel.