From screenwriter Bradford Richardson on Save the Cat!:
1. Assume the rejection is a complete mistake. Several quick phone calls/voicemails, texts, and follow-up emails should clear-up the misunderstanding.
2. A sudden rush of rejection-rage: “The audacity, the empty-headed arrogance.” This feeling inspires several clever revenge plot lines, two of which you jot down for that Misfit Detective TV Pilot you’ve been developing.
Link to the rest at Save the Cat!