What? Wait, why isn't the animation happening? Oh no, it missed! UGH! GOD! NOW I'M GONNA LOOSE! *proceeds to Dragon Rage in head*
If it costs me a battle or whatnot, I save, then take the game out. I then put it in a corner for 15 minutes, followed by a stern talking to as to why misses and not critting are not acceptable in this household. If it back-talks, it gets a spanking.
It's usually just a "Crap" moment.
If I'm really flustered (or I'm in the Battle Subway and I've got like 18-20 wins) and it costs me that battle, then I might get a little more rowdy. Maybe upgrade the cuss.
But that's usually about it. I might get cranky if you disturb me while it's happening, but that's as bad as it gets.
That, and if I've saved recently, I'll just reset/turn off the game.