One perfect moment: Psylocke
Long before Emma Frost became the morally ambivalent HBIC of the X-Men, Betsy Braddock was all purple and being just as shady. Psylocke has a vision that her seriously underpowered team of X-Men is about to get butchered by the Reavers (who really were scary way back then -- hard to believe, ya know -- or at least scary to the childhood version of me). So instead of, being a super hero and fighting to the death, Psylocke gives the team a telpathic nudge...to run away.
This is from Uncanny X-Men 251 (a really trippy issue) and they are using the Siege Perilous -- a plot device given to them by Roma after the Fall of the Mutants that will split them up for several issues and temporarily wipe away their memories ending the "Outback" era of the team and officially disbanding my favorite X-Men lineup. She has already led Dazzler and Colossus into the siege, and now she's sending Havok on his merry way.
After this, Psylocke becomes Asian and Havok becomes a Genoshan magistrate...