Confirmation box to avoid kill or run accidentally from shiny ( pink and event) wild pokemons

Sometimes when you are hunting distracted and keep click / typing to hit or run, a shiny appears and you only realize what you have done when is to late. But all this tragedy could be avoided if there was an confirm box when a special pokemon appears, preventing the Atack and Run aoptions to be used. Or, instead a confirm box, an regular advice that prevents the player to press any key or clik anywere, such as those advices / popups that Gms use to make a notification ingame. But, of course, only to shiny, pink and event pokemons ( pehaps legendary too ) , not regular ones - that would be worse.