Shopkeepers will hit you instead of a monster when throwing a gold piece
If you stand in the way of a shopkeep that is aggro'd by a monster, he will hit /you/ with a gold piece instead of the monster.
"The shadow wyrm breathes a cone of cold at you! You are frozen! Rathmeer, the mist elven shopkeeper, does not seem to be amused. Something squeezes past the shadow. Rathmeer, the mist elven shopkeeper throws a 1 gold piece at the shadow wyrm. You are wounded."
He could at least say sorry!