It's a fantasy role-playing game.

DM: You are Grog Strongjaw, a goliath barbarian . You are the member of the famous group of adventurers. Previously, The three guards dart out into the rainstorm. you leaps over the banister, holding his warhammer over his head, and slams it down into the torso of one of the prone guards, caving in the armor and ribcage.
DM: Even if you don't need the advantage, it's nice to roll a second time in case because there's a chance of a natural 20.
Player: That's 20, 30.
DM: 30 points of damage on him. (whack) This one you actually bring down onto his other leg. That leg snaps.
Player: Is he on his back?
DM: He's on his back and he's trying to pull away from you.
Player: Right on the knee.
DM: Right on the knee? (crack) It snaps underneath and he screams out in pain as the hammer pulls back. You can see where the bone is jutting out. You've actually taken off the lower half of his leg from the sheer bludgeoning force, and he's now bleeding out onto the ground a little bit. Not as much as he would be, because the flame cauterized the impact from the hammer.
