Such violence is not limited to street crime. Parental threats may be veiled but a small child can sense that the bottom line comes from disproportional size and strength. Violence need not be employed in order to punctuate speech. Furthermore, communication is not limited to words alone. The tone of voice, the expression on one's face, movements, gestures and prior experience all add to the content communicated.
Words alone are always out of context.
It is in the nexus of total communication to which the person responds. A and B cooperate, which is optimum. B betrays A while A makes a conscientious effort to act in good faith, which is the classic betrayal. However, the fourth choice comes when B, initially receptive to A's good will, refuses to accept the betrayal. Assume that A is the initiator of the encounter and B is the responder.