It is a FACT because it is a true statement.
Answer: Appeal; Enlist
Explanation: Enlist is a synonym for recruit, meaning, engage (a person or their help or support), fitting your desired context. On the other hand, appeal means for a serious or urgent request, best fitting for call.
Its a simile, basically hes suggesting by holding onto anger, you’re just waiting until you act on it by taking it out on someone