Extra Leave Failsafe for Ranked

I can't tell you how rage inducing it is when I leave a ranked match before realizing a teammate has a gold shield and I end up getting penalized for leaving early. It's just second nature for me to hit space or enter when the menu pops up and then I realize the leave message is different than usual but I already hit space than I frantically hit esc in the hopes it will cancel but it's too late and I lose a bunch of RP. Maybe a second pop up like "are you absolutely sure" or maybe you have to manually hit yes or no with the mouse or something so I don't end up losing a bunch of RP for leaving early.