>>37154670>not carrying Quick Balls everywhere >not saving your Master Ball for a full-odds shiny that knows Self-Destruct or Explosion (though I can understand that in Alpha Sapphire where Deoxys literally will not stay in any other ball, knows Recover and can one-shot anything that can manage to not one-shot it)>not carrying a large supply of Ultra Balls everywhere >not having something high-leveled with Stun Spore, False Swipe (which you only use if you know it doesn't have any self-damaging moves) and Hypnosis I have yet to lose a shiny, but with the number I've found in Ultra Space I'm sure it's going to happen someday.