In Season 5, Episode 2, Walt tried to pull Mike back into the game, Mike refuses.
Walt uses the argument "to leave emotion out of this decision." It's ironic because almost every decision walt made is entirely of emotion
And then Mike pointed out that Walt is indeed emotional and full of trouble. He called Walt a time bomb that was tick-tick-ticking. Mike literally said "I have no intention of being around for the boom.
Ironic, yet too bad, that Mike actually stayed around for the boom by joining the game, literally suffered the boom when Walt shot him by surprise, exactly a boom-level catastrophe. Not-so-full measure of Mike, is it?