To me, seeing a shiny Pokemon ends up like this:
I find Shiny Pokemon.
I accidentally use Crobat's Giga Drain, Charizard's Earthquake, Entei's Eruption, Lugia's Thunderbolt, Manaphy's Water Pulse, or Suicune's Blizzard.
I kill Shiny Pokemon.
I lack Pokemon that can actually weaken instead of kill the Pokemon outright.