From Wikipedia:

The Kübler-Ross model, commonly referred to as the "five stages of grief", is a hypothesis introduced by Elisabeth Kübler-Ross[1] and says that when a person is faced with the reality of impending death or other extreme, awful fate, he or she will experience a series of emotional stages: denial, anger, bargaining, depression and acceptance. This hypothesis was introduced in Kübler-Ross' 1969 book On Death and Dying, which was inspired by her work with terminally ill patients.

Using poetic license to edit for the airline profession:

The Legacy Consolidation model, commonly referred to as the "five stages of grief," is a hypothesis introduced by (insert your MEC here) and says that when a pilot is faced with the reality of impending Merger or other extreme, awful fate (such as a proposed SLI) they will experience a series of emotional stages:

1. Denial of applicability of ALPA Policy or precedent,
2. Anger at the Negotiating Committees, ALPA National, and the Other Carriers' MEC,
3. Collective Bargaining,
4. Economic and Emotional Depression, and
5. Acceptance and Embarrassment, when frivolous Lawsuits are filed.

This hypothesis was introduced in George Hopkins' books Flying the Line and Flying the Line II, which was inspired by ALPA's work with pilots who lived in Airport Terminals while on reserve, giving rise to the phenomenon popularly called "terminal illness."