Critical Miss Tank
"Ok, go ahead and roll to attack."
Your d20 goes bumbling across the scarred tabletop and you look on anticipating the merciless smack down you're about to lay. It comes to a stop. Your eyes widen. Your friend snickers to your right. It's... a one.
"NO! Crap! What?!" You sputter.
"Oohh dang..." Says the DM semi sympathetically. "Your sword makes a glittering arc but gets tangled in the chain of your enemies' morning star. Sparks fly as the beautiful blade snaps like a dry branch and you lurch backwards on your back, stunned."
"I hate this game." You mutter. You lie.