What exactly is a threat? It's fear and anger expressed into words. It's tears that build up but never spill over. A threat is as empty as the promises we have made.
A threat is something we make something that shall never be acted on. It's the Heat of the Moment building up until it finally explodes. It's regret and mistakes refusing to be made again.
It's sadness that is nowhere else to go. It's happiness that has runoff and doesn't want to be found. It's a promise that you hope is kept.